RARE Allophane Small Specimen Out of stock Good quality with some cubic

Good quality with some cubic formations

Very rare Dioptase crystals on matrix rock

medium-sized bowl/dish carved from high grade

it is perfect for cutting and polishing into several jeweller's grade cabochons or to be admired in its natural beauty as a collector's specimen

RARE Allophane Small Specimen Out of stock Good quality with some cubicRare Allophane is made up of aluminum, silica, and water and is described as a clay mineral. It is created when other aluminosilicates, like feldspar, break down due to weathering or hydrothermal alteration and can be many colours like this bright blue hue. Sourced from Guizhou, China. Specimen measures approx. 4. 5cm x 3. 7cm x 1. 2cm. Pictured in a 5. 2cm x 5. 2cm acrylic display box. A rare and unique specimen for any fine mineral collector. Please