Ruby
Ruby
Ruby

Ruby

€33,00
Sold out
SKU: A274
Winza, Mpapwa District, Dodoma Region, Tanzania
This red-violet ruby has several shiny crystal and end faces in the upper part. It is partially transparent and its color contrasts beautifully with the black matrix stone; bright red under UV light.
1.7x1.4x1.0 cm
3.4 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 significant locations being in Myanmar, Thailand, Sri Lanka, Madagascar and Tanzania.