Rare Bright Orange Clinohumite Gemstone from Tajikistan, 2.47 cts., 10x7 mm., Pear ShapeGem: Clinohumite Weight: 2. 47 cts Size: 10. 51 x 7. 51 mm Color: Bright Orange Clarity: I Cut: Pear Locality: Tajikistan Treatment: None Clinohumite is certainly a rare gem, and only a small quantity has ever been found from any of the few world localities it comes from. It is a magnesium silicate with a harness of 6 which can be used in jewelry. It was first discovered in metamorphosed limestone ejected from Mt. Vesuvius in 1876. Transparent gem