Calcite 10 bleu it can discolor and leave

it can discolor and leave yellow marks in the drill hole that goes through the stones

- Demantoid garnet

Pays d'origine : Brésil

gray Shape: Drop Size: 38

magenta to purple

Calcite 10 bleu it can discolor and leaveCalcite cabochon. Color: Beige and brown Shape: Drop Size: 49. 15 x 33. 57mm Weight in grams: 15. 10g Carat weight: 75. 50 carat Country of origin: Peru Gemological information about calcite: Possible colors: Colorless, white, yellow, green, blue, red, orange, brown, gray, black, magenta Density: Between 2. 60 and 2. 80 Hardness: 3 Crystal system: Trigonal Fracture: Conchoidal Cleavage: Perfect Polariscope: Anisotropic, restores every 90, except in