A stunning small Aurichalcite nodule with crystal cavity. Measures approximately 2″ x 2″ x 1.5″ (50.8 x 50.8 x 38 mm or 5 x 5 x 3.8 cm), and weighing 3.6 ounces. Chihuahua, Mexico.
Aurichalcite is also known as Auricalcite, Auricalcocita, Aurichalcita, Blue Calamine, Buratite, Messingite, Orichalcite, Risseite. It is a carbonate mineral. Monoclinic. (Zn,Cu)5(CO3)2(OH)6. Composition of copper and zinc makes it a naturally occuring brass, but not common enough to use a ore. Sign of zinc deposits nearby. Also known as mountain brass or mountain copper.
3 × 3 × 3 in
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Cluster of brilliant emerald-green Dioptase crystals on matrix. The largest dioptase crystal is 0.5 inches. Crystals are rhombohedral shape. The specimen is from the type location for dioptase: Altyn-Tyube deposit, Karaganda Region, Kazakhstan.
AVAILABILITY: 1 in stock
I will be travelling for shows in 4 different cities for the next 4 weeks. Minerals are not available to purchase until November 21st. I should be able to ship any purchases the next day. I appreciate your understanding.