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Calcopyrite

Calcopyrite

Vendor
Skeeter's Little Rock Shop
Regular price
$3.99
Sale price
$3.99

Calcopyrite is a mineral composed of copper, iron, and sulfur.  In its natural state, calcopyrite has a lustrous, brassy, yellow color, which  causes it to sometimes be confused with gold and fools gold (pyrite).  It is softer than pyrite and can tarnish to a greenish gray with exposure to weather.  Acids cause calcopyrite to tarnish to iridescent red, blue, or purple.

NOTE:  The item photographed is similar to the one you will receive.  These specimens are approximately 2" in length, and weigh between 2 and 3 ounces each. Region of Origin: Zacataecas, Mexico.