#10D21 - Covellite
Treatment: None. Natural stone.
Origin: Butte, Montana
Dime: Not included, shown for comparison only
Care & Feeding:
Covellite is on the softer side of the hardness scale, around 1.5-2.0 on the MOHS scale, so it should be treated with a degree of tenderness. Cleaning covellite is simple; warm soapy water will do the job. Do not use solvents, steam or ultrasonic cleaners. Over time heat, chemicals, cosmetics, and even skin oils can potentially compromised covellite, but than again, those same things can effect most precious metals and stones, as a rule, it is best to remove jewelry before bathing, washing dishes, cleaning and swimming.