Black Rutilated Quartz 7x8mm Faceted Swirl Oval - 15-16 Inch 48hr_10072025 with a Mohs Hardness of

with a Mohs Hardness of 8

as well as for brake shoes

with some transparent inclusions

The green coloring has likened the stone of jadeite in the past

Black Rutilated Quartz 7x8mm Faceted Swirl Oval - 15-16 Inch 48hr_10072025 with a Mohs Hardness ofRutilated Quartz is a silicon dioxide mineral with unique needle 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 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, they