Variscite-crandallite nodule (Clay Canyon, Utah County, Utah, USA) 3

Variscite-crandallite nodule from Utah, USA. (CMC RM 1289, Cincinnati Museum of Natural History & Science, Cincinnati, Ohio, USA)

A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 6000 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.

Variscite is a hydrous aluminum phosphate mineral (Al(PO4)·2H2O). It typically has a greenish to bluish-green color similar to turquoise, but is much scarcer.

The olive green portions of this specimen are the rare phosphate mineral crandallite, CaAl3(PO4)(PO3OH)(OH)6 - calcium aluminum hydroxy-phosphate.

Locality: Little Green Monster Variscite Mine, Clay Canyon, Utah County, northern Utah, USA
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Photo gallery of variscite:
www.mindat.org/gallery.php?min= 4156

Some rights reserved

Taken on: March 21, 2007

Tags:

variscite

aluminum

phosphates

mineral

minerals

Clay

Canyon

Mine

Utah

County

crandallite

nodule

Locality:

Little

Green

Monster « less

Sets appears in: • Minerals - Phosphates (Variscite) • Utah Rocks, Minerals, Fossils more » • Green Rocks, Minerals, Fossils « less

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