Usually the original mineral was aragonite or calcite, and it has been replaced by silica (in ... sediment that filled one chamber of a Nautilus-like animal (see the complete specimen). This ...

Found all over the world, calcite is the most stable form of calcium carbonate and is the main mineral found in limestone. We find calcite in the ocean, in shells or hard parts of marine organisms ...

Sharon Avenue, adjacent to the ATDC facility. It features the world's best collection of crystallized native copper and native copper in crystallized calcite. About 8,000 mineral specimens are on ...

The Science Education Center houses thousands of rock and mineral samples in what is known as "The Rock ... Each link will show a particular set of specimens and include its scientific name. Note: ...