Insouciant Studios Sable Earrings Petro Tourmaline and Smoky Quartz

Insouciant Studios Presents the "Sable" Earrings featuring dainty natural petro tourmaline beads above genuine faceted natural smoky quartz briolettes. Sterling silver construction with sterling silver earwires. These earrings feature easy, versatile style in a rich sable brown color that goes with everything.

Measurements
Total Length 1 1/4 inches, (3.5 cm)
~1/2 inch wide at quartz briolette (~ 1.5 cm)

Materials

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:
Purple: Amethyst
Yellow: Citrine
Yellow and Purple: Ametrine
Green: Prasiolite
White: Milk, snow
Brown/gray/black: Smoke
Pink: Rose
[Mineralogy, Perkins]

Tourmaline [(Na, Ca)(Fe, Mg, Al, Li)3Al6(BO3)3 Si6)18(OH)4] is a highly variable mineral with a hardness of 7 to 7.5 on the Mohs scale. It occurs in many colors, including black, blue, green, pink, and colorless. The color is often zoned (more than one color in a crystal or gem). It is commonly associated with quartz and potassium feldspar, and is structurally related to beryl, cordierite, and dioptase. It is one of the few common Boron minerals. [Mineralogy, Perkins]