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Abstracts of new mineral descriptions.

Allabogdanite

Orthorhombic

(Fe,Ni)[.sub.2]P

Locality: The Onello iron meteorite found in 1997 in the alluvium of the Bol'shoy Dolguchan River, Onello River basin, Aldan shield, Sakha-Yakutia, Russia (Lat, 62[degrees]20' N, Long. 137[degrees]40' E).

Occurrence: In "plessite," an intergrowth of taenite and kamacite; other associated minerals are: nickelphosphide, schreibersite, awaruite and graphite.

General appearance: Lath-like crystals (up to 0.4 x 0.1 x 0.01 mm).

Physical, chemical and crystallographic properties: Luster: metallic. Diaphaneity: opaque. Color: light straw-yellow. Streak: not given. Hardness: 5 to 6. Tenacity: highly brittle. Cleavage: not observed. Fracture: not given. Density: could not be measured, 7.11 g/c[m.sup.3] (calc.). Crystallography: Orthorhombic, Pnma, a 5.748, b 3.548, c 6.661 [Angstrom], V 135.8 [[Angstrom].sup.3], Z 4, a:b:c = 1.6201:1:1.8774. Morphology: {001} and probably {110} and {100}; flattened on {001}. Twinning: gypsum-like possibly with twin plane {110}. X-ray powder diffraction data: 2.238 (100) (112, 210), 2.120 (80) (211), 2.073 (70) (103), 1.884 (50) (013, 212), 1.843 (40) (301), 1.788 (40) (113), 1.774 (40) (020), 1.758 (40) (203), 1.346 (40) (123, 313, 410), 1.277 (40) (321). Optical data: In reflected light: creamy, distinct anisotropism from light to dark creamy, no bireflectance, pleochroism not given, [R.sub.1], [R.sub.2]: (47.0, 37.6 %) 480 nm, (48.2, 39.2 %) 540 nm, (49.6, 40.7 %) 580 nm, (52.3, 44.3 %) 660 nm. Chemical analytical data: Means of nine sets of electron microprobe data: Ni 20.7, Fe 57.7, Co 1.4, P 20.4, Total 100.2 wt.%. Empirical formula: (F[e.sub.1.50]N[i.sub.0.51]C[o.sub.0.03])[.sub.[SIGMA]2.04][P.sub.0.96]. Relationship to other species: It is the orthorhombic polymorph of barringerite which is hexagonal.

Name: For Alla Bogdanovaa (1947-), crystallographer at the Geological Institute, Kola Science Center of the Russian Academy of Sciences, Apatity, Kola Peninsula, Russia. Comments: IMA No. 2000-038.

BRITVIN, S. N., RUDASHEVSKY, N. S., KRIVOVICHEV, S. V., BURNS, P. C., and POLEKHOVSKY, Yu. S. (2002) Allabogdanite, (Fe,Ni)[.sub.2]P, a new mineral from the Onello meteorite: The occurrence and crystal structure. American Mineralogist 87, 1245-1249.

Burnsite

Hexagonal

KCdC[u.sub.7][O.sub.2](Se[O.sub.3])[.sub.2][Cl.sub.9]

Locality: The great fissure Tolbachik eruption (GFTE), Kamchatka Peninsula, Russia.

Occurrence: In a fumarole. Associated minerals are: cotunnite, sophiite, ilinskite, georgbokite, chloromenite and an undefined Cu-Pb selenite.

General appearance: Usually as round anhedral equidimensional grains (up to 0.1 mm) with no obvious crystal forms.

Physical, chemical and crystallographic properties: Luster: given as "strongly vitreous (metalloid)" but the optical data indicate adamantine. Diaphaneity: opaque to translucent. Color: dark red. Streak: red. Luminescence: nonfluorescent. Hardness: VHN 12 kg/m[m.sup.2], Mohs 1 to 1 1/2. Tenacity: brittle. Cleavage: {001} good. Fracture: uneven. Density: could not be measured, 3.85 g/c[m.sup.3] (calc.). Crystallography: Hexagonal, P[6.sub.3]/mmc, a 8.7805, c 15.521 [Angstrom], V 1036.3 [[Angstrom].sup.3], Z 2, c:a = 1.7677. Morphology: no forms were observed. Twinning: none mentioned. X-ray powder diffraction data: 7.779 (100) (002), 6.823 (50) (101), 4.391 (80) (110), 3.814 (80) (200), 3.066 (70) (203), 2.582 (50) (006), 2.501 (60) (213), 2.190 (50) (220). Optical data: Uniaxial (-), [omega] 1.920, [epsilon] 1.912, nonpleochroic. Chemical analytical data: Means of an unstated set of electron microprobe data: [K.sub.2]O 4.3, CuO 46.74, CdO 10.45, Se[O.sub.2] 19.91, Cl 25.46, sum 106.86, less O = Cl 5.75, Total 101.11 wt.%. Empirical formula: [K.sub.1.08]C[d.sub.0.97]C[u.sub.6.98][O.sub.2.08](Se[O.sub.3])[.sub.2.13]C[l.sub.8.53]. Relationship to other species: The only chemically related species are georgbokite, C[u.sub.5][O.sub.2](Se[O.sub.3])[.sub.2]C[l.sub.2], chloromenite, C[u.sub.9][O.sub.2](Se[O.sub.3])[.sub.4]C[l.sub.6], and ilinskite, NaC[u.sub.5][O.sub.2](Se[O.sub.3])[.sub.2]C[l.sub.3].

Name: For Professor Peter C. Burns (1966-) of the University of Notre Dame, Notre Dame, Indiana, USA. Comments: IMA No. 2000-050.

KRIVOVICHEV, S. V., VERGASOVA, L. P., STAROVA, G. L., FILATOV, S. K., BRITVIN, S. N., ROBERTS, A. C., and STEELE, I. M. (2002) Burnsite, KCdC[u.sub.7][O.sub.2](Se[O.sub.3])[.sub.2]C[l.sub.9], a new mineral species from the Tolbachik Volcano, Kamchatka Peninsula, Russia. Canadian Mineralogist 40, 1171-1175.

Bushmakinite

Monoclinic

P[b.sub.2]Al(P[O.sub.4])(V[O.sub.4])(OH)

Locality: The Berezovskoye gold deposit, middle Urals, Russia.

Occurrence: In the oxidized zone in a "nest" consisting of galena, tetrahedrite and tennantite in a quartz vein. Other associated minerals are: cerussite, bindheimite, vauquelinite, mottramite and pyromorphite.

General appearance: Lamellar crystals (up to 0.3 X 0.2 X 0.02 mm).

Physical, chemical and crystallographic properties: Luster: given as vitreous but the optical data indicate adamantine. Diaphaneity: translucent. Color: bright yellow. Streak: yellowish. Luminescence: nonfluorescent. Hardness: 3 to 3 1/2. Tenacity: brittle. Cleavage: {001} perfect. Fracture: stepped to uneven. Density: not measured, 6.22 g/c[m.sup.3] (calc.). Crystallography: Monoclinic, P[2.sub.1]/m, a 7.734, b 5.814, c 8.69 [Angstrom], [beta] 112.1[degrees], V 362 [[Angstrom].sup.3], Z 2, a:b:c = 1.3302:1:1.4947. Morphology: probably {001}. Twinning: none observed. X-ray powder diffraction data: 4.68 (8) (011), 3.57 (5) (111), 3.21 (10) (21[bar.1]), 2.91 (8) (21[bar.2], 10[bar.3]), 2.71 (7) (021, 112), 2.27 (4) (220), 2.05 (5) (12[bar.3], 11[bar.4]). Optical data: Biaxial (-), [alpha] 1.99, [beta] 2.03, [gamma] 2.06, 2V(meas.) large, 2V (calc.) 80[degrees]; dispersion r < v, significant; nonpleochroic; orientation is given as X (or Y) ^ a = -11[degrees], Z = c, but this is not possible in the monoclinic system. Chemical analytical data: Means of four sets of electron microprobe data ([H.sub.2]O calculated from the ideal formula): CuO 2.46, ZnO 0.08, PbO 65.95, A[l.sub.2][O.sub.3] 5.75, F[e.sub.2][O.sub.3] 0.05, [P.sub.2][O.sub.5] 11.67, [V.sub.2][O.sub.5] 9.84, A[s.sub.2][O.sub.5] 0.06, S[O.sub.3] 0.10, Cr[O.sub.3] 1.99, [H.sub.2]O (1.35), Total (99.30) wt.%. Empirical formula: P[b.sub.2.02](A[l.sub.0.77]C[u.sub.0.21]Z[n.sub.0.01])[.sub.[SIGMA]0.99](P[O.sub.4])[.sub.1.00][(V[O.sub.4])[.sub.0.74](Cr[O.sub.4])[.sub.0.14](P[O.sub.4])[.sub.0.12](S[O.sub.4])[.sub.0.01]][.sub.[SIGMA]1.01](OH)[.sub.1.02]. Relationship to other species: It is a member of the brackebuschite group, specifically the Pb-, Al-, P[O.sub.4]-, V[O.sub.4]-dominant member.

Name: For the Russian mineralogist A. F. Bushmakin (1947-1999) who made significant contributions to the mineralogy of the oxidized zone of the Berezovskoye deposit. Comments: IMA No. 2001-031.

PEKOV, I. V., KLEIMENOV, D. A., CHUKANOV, N. V., YAKUBOVICH, O. V., MASSA, W., BELAKOVSKIY, D. I., and PAUTOV, L. A. (2002) Bushmakinite P[b.sub.2]Al(P[O.sub.4])(V[O.sub.4])(OH), a new mineral of the brackebuschite group from the oxidized zone of the Berezovskoye gold deposit, the middle Urals. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 131(2), 62-71.

Cerite-(La)

Trigonal

(La,Ce,Ca)[.sub.9](Fe,Ca,Mg)(Si[O.sub.4])[.sub.3][Si[O.sub.3](OH)][.sub.4](OH)[.sub.3]

Locality: Mt. Yukspor, Khibina massif, Kola Peninsula, Russia.

Occurrence: In an aegirine-natrolite-microcline vein in foyaite. Associated minerals are: aegirine, anatase, ancylite-(Ce), barylite, catapleiite, cerite-(Ce), chabazite-Ca, edingtonite, fluorapatite, galena, ilmenite, microcline, natrolite, sphalerite, strontianite and vanadinite.

General appearance: Porous pseudomorphs (up to 7 cm long) after an unidentified hexagonal prismatic mineral, possibly belovite-(Ce). Cerite-(La) occurs as framework-like aggregates of crystals up to 2 mm across within the pseudomorphs.

Physical, chemical and crystallographic properties: Luster: vitreous. Diaphaneity: translucent. Color: light yellow to pinkish brown. Streak: white. Luminescence: not mentioned. Hardness: 5. Tenacity: brittle. Cleavage: not observed. Fracture: conchoidal. Density: 4.7 g/c[m.sup.3] (meas.), 4.75 g/c[m.sup.3] (calc.). Crystallography: Trigonal, R3c, a 10.7493, c 38.318 [Angstrom], V 3834.4 [[Angstrom].sup.3], Z 6, c:a = 3.5647. Morphology: {102} and {001}, habit equant to tabular on {001}. Twinning: none mentioned. X-ray powder diffraction data: 3.53 (26) (1.0.10, 211), 3.47 (40) (122), 3.31 (38) (214), 3.10 (25) (300), 2.958 (100) (0.2.10), 2.833 (37) (128), 2.790 (24) (306), 2.689 (34) (220), 1.949 (34) (238, 1.3.13). Optical data: Uniaxial (+), [omega] 1.810, [epsilon] 1.820, nonpleochroic. Chemical analytical data: Means of 42 to 70 sets of electron microprobe data (with [H.sub.2]O by the Penfield method) gave: MgO 0.51, CaO 5.09, SrO 1.97, F[e.sub.2][O.sub.3] 1.40, L[a.sub.2][O.sub.3] 37.57, C[e.sub.2][O.sub.3] 23.67, P[r.sub.2][O.sub.3] 0.61, N[d.sub.2][O.sub.3] 1.48, S[m.sub.2][O.sub.3] 0.10, G[d.sub.2][O.sub.3] 0.24, Si[O.sub.2] 22.38, [P.sub.2][O.sub.5] 0.63, [H.sub.2]O 3.20, Total 98.85 wt.%. Empirical formula: (L[a.sub.4.26]C[e.sub.2.67]C[a.sub.1.38]S[r.sub.0.35]N[d.sub.0.16]P[r.sub.0.07]G[d.sub.0.02]S[m.sub.0.01])[.sub.[SIGMA]8.92](F[e.sub.0.32]C[a.sub.0.30]M[g.sub.0.23])[.sub.[SIGMA]0.85](Si[O.sub.4])[.sub.3.00][(S[i.sub.0.84][P.sub.0.16])[.sub.[SIGMA]1.00][O.sub.3.11](OH)][.sub.4](OH)[.sub.2.56]. Relationship to other species: It is the La-dominant analogue of cerite-(Ce).

Name: For the relationship to cerite-(Ce). Comments: IMA No. 2001-042.

PAKHOMOVSKY, YA. A., MEN'SHIKOV, YU. P., YAKOVENCHUK, V. N., INANYUK, G. YU., KRIVOVICHEV, S. V., and BURNS, P. C. (2002) Cerite-(La), (La,Ce,Ca)[.sub.9](Fe,Ca,Mg)(Si[O.sub.4])[.sub.3][Si[O.sub.3](OH)][.sub.4](OH)[.sub.3], a new mineral species from the Khibina alkaline massif: occurrence and crystal structure. Canadian Mineralogist 40, 1177-1184.

Ciprianiite

Monoclinic

C[a.sub.4][(Th,U)(REE)]Al[[square].sub.2](S[i.sub.4][B.sub.4][O.sub.22])(OH,F)[.sub.2]

Locality: Tre Croce, near Vetralla, Viterbo province, Latium, Italy.

Occurrence: In miarolitic cavities in a syenitic ejectum within a pyroclastic formation. Associated minerals are: danburite, thorite, fluorite, tourmaline and a cancrinite-group mineral.

General appearance: Small (<0.5 mm) tabular crystals.

Physical, chemical and crystallographic properties: Luster: vitreous. Diaphaneity: translucent to transparent. Color: brown to pale brown. Streak: white. Luminescence: nonfluorescent. Hardness: not given. Tenacity: brittle. Cleavage: {100} fair to good, Fracture: conchoidal. Density: could not be measured, 3.97 g/c[m.sup.3] (calc.). Crystallography: Monoclinic, P2/a, a 19.059, b 4.729, c 10.291 [Angstrom], [beta] 111.33[degrees], V 864.0 [[Angstrom].sup.3], Z 2, a:b:c = 4.0302:1:2.1761. Morphology: {010}, tabular. Twinning: frequent on (100). X-ray powder diffraction data: 4.729 (72) (010), 3.454 (79) ([bar.2]12), 3.08[9.bar](86) ([bar.4]12), 2.911 (74) (212), 2.84[6.bar](100) (411), 2.653 (80) ([bar.4]13), 2.648 (79) (013), 2.634 (84) ([bar.6]11). Optical data: could not be determined. Chemical analytical data: Means of two to four sets of electron microprobe data (light elements by SIMS): L[i.sub.2]O 0.05, BeO 1.95, MgO 0.18, CaO 24.60, BaO 0.00, [B.sub.2][O.sub.3] 13.28. A[l.sub.2][O.sub.3] 2.33, C[r.sub.2][O.sub.3] 0.02, M[n.sub.2][O.sub.3] 0.37, F[e.sub.2][O.sub.3] 2.87, [Y.sub.2][O.sub.3] 0.19, L[a.sub.2][O.sub.3] 1.39, C[e.sub.2][O.sub.3] 5.48, P[r.sub.2][O.sub.3] 0.86, N[d.sub.2][O.sub.3] 3.03, S[m.sub.2][O.sub.3] 0.33, E[u.sub.2][O.sub.3] 0.05, G[d.sub.2][O.sub.3] 0.14, D[y.sub.2][O.sub.3] 0.05, E[r.sub.2][O.sub.3] 0.01, Y[b.sub.2][O.sub.3] 0.01, Si[O.sub.2] 22.94, Ti[O.sub.2] 0.73, Th[O.sub.2] 15.80, U[O.sub.2] 0.87, [H.sub.2]O 0.47, F 0.89, sum 98.89, less O = F 0.37, Total 98.52 wt.%. Empirical formula: C[a.sub.4.00][(REE)[.sub.0.73]T[h.sub.0.63]C[a.sub.0.60][U.sub.0.03]][.sub.[SIGMA]1.99](A[l.sub.0.48]F[e.sub.0.38.sup.3-]T[i.sub.0.10]M[g.sub.0.05])[.sub.[SIGMA]1.01](B[e.sub.0.82][[square].sub.0.14]L[i.sub.0.04])[.sub.[SIGMA]1.00][B.sub.4.00]S[i.sub.4.01][O.sub.22.00][[O.sub.0.97](OH)[.sub.0.54][F.sub.0.49]][.sub.[SIGMA]2.00]. Relationship to other species: It is a member of the hellandite group.

Name: For Curzio Cipriani (1927-), Professor of Mineralogy and Head of the Museum of Mineralogy, later of Natural History, at the Universita di Firenze, Italy. Comments: IMA No. 2000-021.

DELLA VENTURA, G., BONAZZI, P., OBERTI, R., and OTTOLONI, L. (2002) Ciprianiite and mottanaite-(Ce), two new minerals of the hellandite group from Latium (Italy). American Mineralogist 87, 739-744. OBERTI, R., DELLA VENTURA, G., OTTOLONI, L., HAWTHORNE, F. C., and BONAZZI, P. (2002) Re-definition, nomenclature and crystal-chemistry of the hellandite group. American Mineralogist 87, 745-752.

Cobaltkieserite

Monoclinic

CoS[O.sub.4]*[H.sub.2]O

Locality: Bastnas, Skinnskatteberg, Sweden (Lat. 59[degrees]51' N, Long, 15[degrees]35' E).

Occurrence: In a dark, dense quartzitic rock. Associated minerals are: cobaltite, pyrite, chalcopyrite, quartz, garnet (Al-rich), scorodite and erythrite.

General appearance: Euhedral crystals (0.5 to 3 [micro]m).

Physical, chemical and crystallographic properties: Luster: powdery. Diaphaneity: not given. Color: pink. Streak: not given. Luminescence: not mentioned. Hardness: 2 to 3. Tenacity: not given. Cleavage: not given. Fracture: not given. Density: could not be measured, 3.28 g/c[m.sup.3] (calc.). Crystallography: Monoclinic, C2/c (by analogy with synthetic material), a 6.980, b 7.588, c 7.639 [Angstrom], [beta] 118.65[degrees], V 355.06 [[Angstrom].sup.3], Z 4, a:b:c = 0.9199:1:1.0067. Morphology: no forms were identified, but the crystals are largely euhedral with a thick tabular to "bipyramidal" habit. Twinning: none mentioned. X-ray powder diffraction data: 4.829 (33) ([bar.1]11), 3.405 (100) (11[bar.2]), 3.339 (34) (111), 3.291 (32) (021), 3.062 (56) (200), 2.567 (30) (22[bar.1]), 2.513 (49) (02[bar.2]). Optical data: Biaxial (+), no other data could be determined because of the minuteness of the crystals. Chemical analytical data: Means of twenty sets of electron microprobe data ([H.sub.2]O calculated): CoO 42.7, FeO 0.2, Si[O.sub.2] 0.3, A[s.sub.2][O.sub.5] 4.3, S[O.sub.3] 44.2, [H.sub.2]O (10.5), Total (102.2) wt.%. Empirical formula: C[o.sub.0.98]([S.sub.0.95]A[s.sub.0.06]S[i.sub.0.01])[.sub.[SIGMA]1.02][O.sub.4.00]*1.00[H.sub.2]O. Relationship to other species: It is the cobalt-dominant analogue of kieserite, MgS[O.sub.4]*[H.sub.2]O.

Name: For the relationship to kieserite. Comments: IMA No. 2002-004. Slowly soluble in water.

HOLTSTAM, D. (2002) Cobaltkieserite, CoS[O.sub.4]*[H.sub.2]O, a new mineral species from Bastnas, Skinnskatteberg, Sweden. Geologiska Foreningens i Stockholm Forhandlinger 124, 117-119.

Decrespignyite-(Y)

Monoclinic

(Y,REE)[.sub.4]Cu(C[O.sub.3])[.sub.4]Cl(OH)[.sub.5]*2[H.sub.2]O

Locality: The Paratoo copper deposit, 30 km southwest of Yunta, Olary district, South Australia, Australia (Lat. 32[degrees]41' S, Long, 139[degrees]20' E).

Occurrence: A supergene mineral in narrow fissures of a finegrained, inhomogeneous dolomitic slatestone. Associated minerals are: muscovite, caysichite-(Y), donnayite-(Y), kamphaugite-(Y), malachite, nontronite, "limonite" pseudomorphs after pyrite, calcite and gypsum. Other rare earth minerals found in the deposit but not directly associated with decrespignyite-(Y) are: a Y-rich bastnasite-(La), a Y-rich calcioancylite-(Nd) and a new Ca-La-Cu-carbonate.

General appearance: Crusts (up to 5 mm thick), coatings and fillings in thin fissures. Less common are globular aggregates of thin pseudo-hexagonal crystals (10 to 50 [micro]m in maximum dimension and <0.5 [micro]m thick).

Physical, chemical and crystallographic properties: Luster: vitreous to pearly. Diaphaneity: transparent. Color: intense royal blue to turquoise-blue. Streak: pale blue. Luminescence: nonfluorescent. Hardness: aggregates 2, individual crystals estimated to be 4. Tenacity: not given. Cleavage: could not be observed but if present is {010}. Fracture: not given. Density: 3.64 g/c[m.sup.3] (meas.), 3.82 g/c[m.sup.3] (calc.). See COMMENTS. Crystallography: Monoclinic, P2, Pm or P2/m, a 8.899, b 22.77, c 8.589 [Angstrom], [beta] 120.06[degrees], V 1506.3 [[Angstrom].sup.3], Z 4, a:b:c = 0.3908:1:0.3772. Morphology: no forms were mentioned. Twinning: none mentioned. X-ray powder diffraction data: 22.79 (30) (010), 7.463 (30) (001), 7.086 (50) (011), 6.241 (100) (021), 4.216 (30) ([bar.1]12), 3.530 (40) (022), 3.336 (30) (032), 2.143 (30) (222, [bar.4]01). Optical data: Biaxial (-), [alpha] 1.604, [beta] could not be measured but is very close to [gamma], [gamma] 1.638, 2V could not be measured but must be very small, dispersion could not be measured; pleochroism medium strong, X very pale bluish, Y and Z bluish with a greenish tint, Z [approximately equal to] Y [much greater than] X; orientation not given. Chemical analytical data: Means of seven sets of electron microprobe data ([H.sub.2]O and C[O.sub.2] by CHN analyser): CaO 0.50, CuO 10.90, [Y.sub.2][O.sub.3] 42.20, L[a.sub.2][O.sub.3] 0.30, P[r.sub.2][O.sub.3] 0.10, N[d.sub.2][O.sub.3] 1.30, S[m.sub.2][O.sub.3] 1.00, G[d.sub.2][O.sub.3] 4.80, T[b.sub.2][O.sub.3] 0.40, D[y.sub.2][O.sub.3] 3.70, H[o.sub.2][O.sub.3] 2.60, E[r.sub.2][O.sub.3] 2.50, C[O.sub.2] 18.80, [H.sub.2]O 10.80, Cl 3.00, sum 103.90, less O = Cl 0.68, Total 103.22 wt.%. Empirical formula: ([Y.sub.3.13]G[d.sub.0.22]D[y.sub.0.17]H[o.sub.0.12]E[r.sub.0.11]C[a.sub.0.07]N[d.sub.0.06]S[m.sub.0.05]T[b.sub.0.02]L[a.sub.0.02]P[r.sub.0.01])[.sub.[SIGMA]3.98]C[u.sub.1.15](C[O.sub.3])[.sub.3.77][C[l.sub.0.71](OH)[.sub.0.29]][.sub.[SIGMA]1.00](OH)[.sub.5.63]*2.07[H.sub.2]O. See COMMENTS.

Relationship to other species: Probably structurally related to kamphaugite-(Y).

Name: For Mr. Robert James Champion de Crespigny (1950-), Executive Chairman of Normandy Mining Limited, Chancellor of the University of Adelaide and Chairman of the South Australian Museum, in recognition of his contribution to the Australian mining industry and Australian education.

Comments: IMA No. 2001-027. The calculated density given in the paper is 3.645 g/c[m.sup.3] rather than 3.82 g/c[m.sup.3] given here. The empirical formula in the paper has subscripts which are somewhat different from those given here. Dr. Pring agrees with the calculated density and empirical formula presented here.

WALLWORK, K., KOLITSCH, U., PRING, A., and NASDALA, L. (2002) Decrespignyite-(Y), a new copper yttrium rare earth carbonate chloride hydrate from Paratoo, South Australia. Mineralogical Magazine 66, 181-188.

Feklichevite

Trigonal

N[a.sub.11]C[a.sub.9](F[e.sup.3+],F[e.sup.2+])[.sub.2]Z[r.sub.3]Nb[S[i.sub.25][O.sub.73]](OH,[H.sub.2]O,Cl,O)[.sub.5]

Locality: The Kovdor Phlogopite Mine, Kovdor alkaline-ultrabasic massif, Kola Peninsula, Russia.

Occurrence: In a pegmatoid cancrinite vein. Associated minerals are: potassic feldspar, cancrinite, aegirine-diopside, pectolite, titanite, hematite and pyrrhotite.

General appearance: Equant to thick tabular crystals and grains (up to 2.5 cm).

Physical, chemical and crystallographic properties: Luster: vitreous. Diaphaneity: translucent. Color: dark brown. Streak: brownish. Luminescence: nonfluorescent. Hardness: 5 1/2. Tenacity: brittle. Cleavage: {001} perfect. Fracture: stepped to rough. Density: 2.87 g/c[m.sup.3] (meas.), 2.85 g/c[m.sup.3] (calc.). Crystallography: Trigonal, R3m, a 14.255, c 30.170 [Angstrom], V 5309.3 [[Angstrom].sup.3], Z 3, c:a = 2.1165. Morphology: {001}, {110}, {100}, {101}, {104}, {012}, {021} and {267}. Twinning: none mentioned. X-ray powder diffraction data: 6.43 (39) (104), 4.31 (69) (205), 3.53 (37) (027), 3.218 (56) (208), 3.170 (34) (036, 217), 3.036 (42) (119, 042), 2.977 (81) (135), 2.854 (100) (404), 2.602 (44) (039). Optical data: Uniaxial (+), [omega] 1.616, [epsilon] 1.620, nonpleochroic. Chemical analytical data: Means of twelve sets of electron microprobe data ([H.sub.2]O by Penfield method): N[a.sub.2]O 11.45, CaO 15.55, MnO 0.49, FeO 2.08, SrO 0.28, F[e.sub.2][O.sub.3] 3.20, L[a.sub.2][O.sub.3] 0.11, C[e.sub.2][O.sub.3] 0.16, Si[O.sub.2] 50.35, Zr[O.sub.2] 11.65, Hf[O.sub.2] 0.62, Ti[O.sub.2] 0.12, N[b.sub.2][O.sub.5] 2.41, [H.sub.2]O 1.72, F 0.12, Cl 0.61, sum 100.92, less O = F + Cl 0.19, Total 100.73 wt.%. Empirical formula: N[a.sub.11.13](C[a.sub.8.35]M[n.sub.0.21]S[r.sub.0.08]C[e.sub.0.03]L[a.sub.0.02])[.sub.[SIGMA]8.69](F[e.sub.1.21.sup.3+]F[e.sub.0.87.sup.2+])[.sub.[SIGMA]2.08](Z[r.sub.2.85]H[f.sub.0.09]T[i.sub.0.05])[.sub.[SIGMA]2.99]N[b.sub.0.55][S[i.sub.25.24][O.sub.73.00]][(OH)[.sub.2.41]([H.sub.2]O)[.sub.1.67][O.sub.0.21]C[l.sub.0.52][F.sub.0.19]][.sub.[SIGMA]5.00]. Relationship to other species: It is a member of the eudialyte group.

Name: For V. G. Feklichev (1933-1999), Russian mineralogist and crystallographer. Comments: IMA No. 2000-017.

PEKOV, I. V., EKIMENKOVA, I. A., CHUKANOV, N. V., RASTSVETAEVA, R. K., KONONKOVA, N. N., PEKOVA, N. A., and ZADOV, A. E. (2001) Feklichevite, N[a.sub.11]C[a.sub.9](F[e.sup.3+],F[e.sup.2+])[.sub.2]Z[r.sub.3]Nb[S[i.sub.25][O.sub.73]](OH,[H.sub.2]O,Cl,O)[.sub.5], a new mineral of the eudialyte group from the Kovdor massif, Kola Peninsula. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 130(3), 55-65.

Ferriallanite-(Ce)

Monoclinic

CaCeF[e.sup.3+]AlF[e.sup.2+](Si[O.sub.4])([Si.sub.2][O.sub.7])O(OH)

Locality: Mount Ulyn Khuren, Altai Range, Mongolian People's Republic (approximately at Lat. 48[degrees]32' N. Long. 92[degrees]55' E).

Occurrence: In an alkaline granitic pegmatite. Associated minerals are: zircon, quartz, kainosite-(Y), aegirine, [beta]-fergusonite-(Y), yttrian ilvaite, ilvaite, hingganite-(Ce), neodymian allanite-(Ce), magnetite, fayalite and fluorite.

General appearance: An aggregate of subhedral grains 0.3 X 0.5 to 1 X 2 mm.

Physical, chemical and crystallographic properties: Luster: resinous. Diaphaneity: opaque to translucent. Color: black with red or orange internal reflections. Streak: brown. Luminescence: nonfluorescent. Hardness: VH[N.sub.100] 1250 kg/m[m.sup.2], Mohs 6. Tenacity: brittle. Cleavage: not observed. Fracture: conchoidal to uneven. Density: 4.22 g/c[m.sup.3] (meas.), 4.16 g/c[m.sup.3] (calc.) for the crystal used for the structure refinement and 4.21 g/c[m.sup.3] (calc.) for another sample. Crystallography: Monoclinic, P[2.sub.1]/m, a 8.962, b 5.836, c 10.182 [Angstrom], [beta] 115.02[degrees], V 482.6 [[Angstrom].sup.3], Z 2, a:b:c = 1.5356:1:1.7447. Morphology: no forms were observed. Twinning: none mentioned. X-ray powder diffraction data: 3.55 (55) ([bar.2]11), 2.93 (65) ([bar.1]13), 2.72 (80) (120, 013), 2.69 (55) (300), 2.63 (60) ([bar.3]11), 2.34 (55) ([bar.2]22), 2.18 (100) (122, [bar.1]23, [bar.4]01), 2.14 (80) (221, [bar.4]03, [bar.2]23, 014), 1.46 (50) (040). Optical data: Biaxial (-), [alpha] 1.825, [beta] 1.855, [gamma] 1.880, 2V could not be measured, 2V (calc.) 83[degrees]; dispersion r < v, strong; pleochroism X = greenish gray, Y = brown, Z = dark red-brown, Z > Y > X; orientation not given. Chemical analytical data: Means of four sets of electron microprobe data: CaO 10.85, MnO 0.82, FeO 8.44, A[l.sub.2][O.sub.3] 6.07, F[e.sub.2][O.sub.3] 18.88, L[a.sub.2][O.sub.3] 5.12, C[e.sub.2][O.sub.3] 10.86, P[r.sub.2][O.sub.3] 1.63, N[d.sub.2][O.sub.3] 5.29, Si[O.sub.2] 28.72, Ti[O.sub.2] 1.85, [H.sub.2]O 1.48, Total 100.01 wt.%. Empirical formula given by the authors (with all REEs indicated as Ce) is: (C[a.sub.0.97]C[e.sub.0.03])[.sub.[SIGMA]1.00](C[e.sub.0.89]C[a.sub.0.11])[.sub.[SIGMA]1.00](F[e.sub.0.80.sup.3+]T[i.sub.0.14]A[l.sub.0.06])[.sub.[SIGMA]1.00](A[l.sub.0.56]F[e.sub.0.44.sup.3+])[.sub.[SIGMA]1.00](F[e.sub.0.93.sup.2+]M[n.sub.0.07])[.sub.[SIGMA]](S[i.sub.0.94]A[l.sub.0.06])[O.sub.4.00](S[i.sub.2][O.sub.7])O(OH). Relationship to other species: It is the F[e.sup.3+]-dominant analogue of allanite-(Ce).

Name: For the relationship to allanite-(Ce). Comments: IMA No. 2000-041.

KARTASHOV, P., FERRARIS, G., IVALDI, G., SOKOLOVA, E., and McCAMMON, C. A. (2002) Ferriallanite-(Ce), CaCeF[e.sup.3+] AlF[e.sup.2+](Si[O.sub.4])(S[i.sub.2][O.sub.7])O(OH), a new member of the epidote group: description, X-ray and Mossbauer study. Canadian Mineralogist 40, 1641-1648.

Ferronordite-(La)

Orthorhombic

N[a.sub.3]Sr(La,Ce)FeS[i.sub.6][O.sub.17]

Locality: Bol'shoi Punkaruaiv Mt., Lovozero alkaline massif, Kola Peninsula, Russia.

Occurrence: In ussingite cores of two hyperagpaitic pegmatites. Associated minerals are: aegirine, epistolite, sphalerite, steenstrupine-(Ce) and altered serandite.

General appearance: Tabular crystals up to 8 X 5 X 1 mm and spherulites 1.5 cm in diameter.

Physical, chemical and crystallographic properties: Luster: vitreous. Diaphaneity: transparent. Color: colorless to pale brown. Streak: white. Luminescence: nonfluorescent. Hardness: 5. Tenacity: brittle. Cleavage: {100} perfect. Fracture: uneven. Density: 3.54 g/c[m.sup.3] (meas.), 3.58 g/c[m.sup.3] (calc.). Crystallography: Orthorhombic, Pcca, a 14.440, b 5.191, c 19.86 [Angstrom], V 1489 [[Angstrom].sup.3], Z 4, a:b:c = 2.7817:1:3.8259. Morphology: mainly {100}. Twinning: none observed. X-ray powder diffraction data: 7.20 (40) (200), 4.21 (100) (210), 3.323 (82) (312), 2.964 (88) (410), 2.873 (99) (314), 2.595 (58) (020), 2.442 (44) (406). Optical data: Biaxial (-), [alpha] 1.624, [beta] 1.637, [gamma] 1.644, 2V(meas.) 60[degrees], 2V (calc.) 72[degrees]; dispersion r > v, weak; nonpleochroic; orientation, X = a, Y = c, Z = b. Chemical analytical data: Means of four sets of electron microprobe data: N[a.sub.2]O 11.23, MgO 0.30, CaO 0.53, MnO 2.50, FeO 3.75, ZnO 2.29, SrO 12.69, BaO 0.36, A[l.sub.2][O.sub.3] 0.14, L[a.sub.2][O.sub.3] 11.36, C[e.sub.2][O.sub.3] 8.21, P[r.sub.2][O.sub.3] 1.00, N[d.sub.2][O.sub.3] 0.89, Si[O.sub.2] 44.06, Total 99.31 wt.%. Empirical formula: (N[a.sub.2.93]C[a.sub.0.08])[.sub.[SIGMA]3.01](S[r.sub.0.99]B[a.sub.0.02])[.sub.[SIGMA]1.01](L[a.sub.0.56]C[e.sub.0.40]P[r.sub.0.05]N[d.sub.0.04])[.sub.[SIGMA]1.05](F[e.sub.0.42]M[n.sub.0.28]-Z[n.sub.0.23]M[g.sub.0.06])[.sub.[SIGMA]0.99](S[i.sub.5.92]A[l.sub.0.02])[.sub.[SIGMA]5.94][O.sub.17.00]. Relationship to other species: It is the La-dominant analogue of ferronordite-(Ce).

Name: For the relationship with ferronordite-(Ce). Comments: IMA No. 2000-015.

PEKOV, I. V., CHUKANOV, N. V., TURCHKOVA, A. G., and GRISHIN, V. G. (2001) Ferronordite-(La), N[a.sub.3]Sr(La,Ce)FeS[i.sub.6][O.sub.17], a new mineral of the nordite group from Lovozero massif, Kola Peninsula. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 130(2), 53-58.

J. A. Mandarino

Chairman Emeritus of the Commission on New Minerals and Mineral Names of the International Mineralogical Association and Curator Emeritus Department of Mineralogy Royal Ontario Museum 100 Queen's Park Toronto, Ontario, Canada M5S 2C6
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Author:Mandarino, J.A.
Publication:The Mineralogical Record
Date:Mar 1, 2004
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