Shocking rocks.Explorers in Central California's Sequoia National Park Sequoia National Park, 402,510 acres (162,960 hectares), E central Calif.; est. 1890. In the park are 35 groves of giant sequoias, spectacular granite mountains, and deep canyons. have stumbled upon a crystal-filled cave that lay hidden from view for more than one million years. More than 240 caves The following is a partial list of caves. Africa Ethiopia
Main article: List of caves in South Africa
The cave also boasts more stalactites Stal`ac`ti´tes n. 1. A stalactite. than are normally seen in the park's caves. These rock formations form when mineral-rich water drips from the cave's ceiling. The mineral calcium carbonate calcium carbonate, CaCO3, white chemical compound that is the most common nonsiliceous mineral. It occurs in two crystal forms: calcite, which is hexagonal, and aragonite, which is rhombohedral. crystallizes from the water, creating icicle-shaped deposits on the ceiling. Scientists are now studying the cave to find out what caused its unusual conditions. |
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