Tomáš Slížek

Tomáš Slížek

Tomáš Slížek
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Kalcit

Kalcit

an aquamarine crystal with albite (a feldspar mineral that contains sodium)

David Friend Hall at the Yale Peabody Museum of Natural History exhibits fantastic examples of premier minerals and gems from private collections.

Apatite+Mineral | Apatite Mineral monographs V.17

The Mineralogical Record Bookstore: ExtraLapis English: Apatite -- The Great Pretender - J. Rakovan, G. Staebler, and D.

Sotheby's to auction a rough diamond the size of a tennis ball

Lesedi La Rona rough diamond, weighs an astonishing carats, the largest gem-quality rough diamond to be discovered in more than a century, dubbed 'the find of a lifetime,' expected to fetch more than 70 million dollars