Insouciant Studios Muted Earrings Angelite Chalcedony
Insouciant Studios "Muted" Earrings featuring a lovely arrangement of natural lavender blue angelite and glowy butter colored chalcedony stones. 14 k gold filled construction and earwires.
2 inches long (5 cm)
0.4 inch wide (1 cm)
Angelite, otherwise known as Anhydrite in a mineralogical context, is an evaporite mineral often found in association with gypsum, sulphur, halite, calcite, and dolomite. It is a member of the Anhydrous Sulfate Group, with chemical formula CaSO4 (Calcium Sulfate). Anhydrite and gypsum are the only rock forming sulfate minerals. Anhydrite has a hardness of 3-2.5 on the Mohs scale (so fairly soft) , and a pearly or vitreous luster. In pure form, this mineral is colorless, with color coming (as usual) from minute quantities of other elements within the crystal lattice. [Mineralogy, Perkins]
Quartz (SiO2, Silicon Dioxide) is the second most abundant mineral of the Earth's crust. Quartz has a hardness of 7 on the Mohs scale, an occurs in a variety of colors, from colorless to black. Some of the colors have their own gem names:
Yellow and Purple: Ametrine
White: Milk, snow