A fine-grained quartz, jasper is opaque and most commonly exhibits a brownish-red color, but it can also appear in green, yellow, brown or black. On Mohs’ scale of hardness, jasper is 6.5-7. Primary sources include Egypt, Australia, Brazil, India, Canada, Kazakhstan, Madagascar, Russia, Uruguay, and the United States.
Color
Brownish-red color, but it can also appear in green, yellow, brown or black.
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