Don't miss this absolutely incredible sample of dioptase.  The color and luster on this piece is top notch, truly as good as it gets.  The size of the piece and the size of the crystals is also remarkable, making this one truly one of the best we have ever seen.  
 
As with all of our minerals no two pieces are alike, offering a truly one-of-a-kind gift for mineral collectors, Minecraft fans, geologists, and rockhounds alike. This dioptase is from Mfouti, Republic of the Congo. Pictured mounted on our small adjustable stan, which is included with purchase.
 
About Dioptase
Dioptase is a strikingly vibrant mineral known for its deep emerald to bluish-green color, prized by collectors for its powerful displays of color. It is a secondary copper mineral, forming prismatic, vitreous crystals typically found in oxidized copper deposits. With a relatively low Mohs hardness of 5, dioptase is too fragile for most jewelry and is usually only available as raw crystals. Significant deposits are found in arid, copper-rich regions like Kazakhstan, Namibia, and the Democratic Republic of Congo.