Ruby
Ruby
Ruby

Ruby

€29,00
SKU: A584
Ijaka, Kongwa District, Dodoma Region, Tanzania
New find from the heart of Tanzania. Long, narrow, light pink ruby crystal with intact end faces and a tip bent away to the side.
4.6 x 3.3 x 2.6 cm
47.2 g

Rubies are red varieties of corundum (chemically aluminum oxide (Al2O3)). The red color is caused by small amounts of chromium ions. Rubies crystallize in the trigonal crystal system, have a Mohs hardness of 9 and glow intensely red under UV light.
Rubies are found worldwide, with some of the most important locations being in Myanmar, Thailand, Sri Lanka, Madagascar and Tanzania.