US$ 149.99
Here is a nice large specimen of green apophelite crystals on a white microhulonite matrix
North India (specifically
A unique specimen of gyrolyte and modernite with a little bit of apophyllite and the uniqueness lies in the greenish chloride inclusions in this specimen
and science educators
Location: Wagholi
Libyan Desert Glass Meteorites Here is a nice largeSize: 3. 5 X 3 cm Weight: 20 Gram Location: Libya Product Description Libyan Desert Glass is a rare natural silica glass found in the eastern Sahara Desert near the LibyaEgypt border. It formed approximately 29 million years ago during the late Eocene epoch. Scientific studies suggest it was created when an intense meteorite impact or atmospheric airburst generated temperatures above 1,700C, melting desert sand (nearly pure silica) into glass. The
US$ 149.99
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US$ 225.00
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