RARE Allophane Medium Specimen Palm Stone Weight 21g

Weight 21g

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RARE Allophane Medium Specimen Palm Stone Weight 21gRare 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. 9. 7cm x 4. 2cm x 2cm. Pictured in a 10cm x 10cm x 6cm acrylic display box. A rare and unique specimen for any fine mineral collector. Please