Insouciant Studios Rosy Earrings Angelite Chalcedony
Insouciant Studios "Rosy" Earrings featuring a lovely arrangement of natural lavender blue angelite and faceted rose quartz stones. 925 sterling silver construction and earwires.
1.25 inches long (3 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