Calcite’s Physical Properties

1. Color: **white, but can be colorless, gray, red, green, blue, yellow, brown, or orange **
2. Streak: white
3. Luster: vitreous
4. Cleavage/fracture: 3 cleavage planes (perfect rhombohedral)
5. Hardness: 3
6. Tenacity: brittle
7. Specific Gravity: 2.7