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Comes
in a black felt-lined specimen box
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SPECIAL BUY
$3.95 each
(OUT OF STOCK)
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M111 -
Hydrous calcium potassium fluorsilicate,
often with a small amount of iron and nickel. Hardness 4-1/2
to 5. Water clear pyramid shaped crystals. Apophyllite is
commonly found in cavities in basalt of volcanic rock, where
it is associated with zeolites and prehnite. India.
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