Gold Rutilated Quartz 8mm Round - 15-16 Inch Amber Unsealed granite may discolor when

Unsealed granite may discolor when exposed to oil

the other being Diamond

and was prized in ancient times for the ultramarine dye derived from it

a phenomenon that occurs when light hits the chips of silica inside the gemstone and a rainbow of different colors refract inside the stone

Gold Rutilated Quartz 8mm Round - 15-16 Inch Amber Unsealed granite may discolor whenRutilated Quartz is a silicon dioxide mineral with unique needle to like inclusions of Rutile. These needles usually appear golden, but can also appear silver, red, copper, or black and can be distributed randomly or in bundles or star to like formations. Rutile is the mineral name for natural crystals of titanium dioxide, which may contain iron oxide. When the level of iron oxide is high, the inclusions appear more golden or copper, when it is low,