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Crocoite Adelaide mine

Crocoite: Spanning Serbia and Tazmania

By Bob Jones One of the most beautiful minerals we can own is crocoite, a bright red lead chromate. It is also one of the...
Black River agate

Big Band Theory: A New Explanation of Band Formation in Nodular...

Story and Photos by Marco Campos-Venuti Among all agates, the nodular, banded variety, with their wonderful shapes and colors, is probably the most desired by...

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