M117 - Glauberite crystals (Sodium Calcium Sulfate)
Greenish white crystals from the Camp Verde Salt Mines, Verde Valley, Arizona.
Hardness: 2-1/2 to 3.
Ray personally collected these unusual crystals during three trips to this collecting site in north central Arizona.
Not a common mineral and is not often found in mineral collections. It is of interest mainly to crystal collectors.
Some specimens have a green tint to them, from the copper content in the soil where they were found.
1" to 3", from Arizona
LOW PRICE
Price: only
$2.95 each
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