Amazzonite

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Material info

DescriptionValue
Colorgreen
NationBrazil
TypeGranite
compressive strength (kg/cm²)2363
after freezing (kg/cm²)2181
ultimate tensile strength (kg/cm²)143
coef. thermal expansion (mm/mcm°C)0,005
water absorption (%)0,13
impact test / min. fall height (cm)82
frictional wear test (mm)0,7
bulk density (kg/cm³)2593

Description

Amazonite (sometimes called “Amazon stone”) is a green variety of microcline feldspar.

The name is taken from that of the Amazon River, from which certain green stones were formerly obtained, but it is doubtful whether green feldspar occurs in the Amazon area.

Amazonite is a mineral of limited occurrence. Formerly it was obtained almost exclusively from the area of Miass in the Ilmensky Mountains, 50 miles southwest of Chelyabinsk, Russia, where it occurs in granitic rocks. More recently, high-quality crystals have been obtained from Pike’s Peak, Colorado, where it is found associated with smoky quartz, orthoclase, and albite in a coarse granite or pegmatite. Crystals of amazonite can also be found in Crystal Park, El Paso County, Colorado. Other locations in the United States which yield amazonite include the Morefield Mine in Amelia, Virginia. It is also found in pegmatite in Madagascar, Canada and in Brazil.

Because of its bright green color when polished, amazonite is sometimes cut and used as a cheap gemstone, although it is easily fractured, and loses its gloss due to its softness.

For many years, the source of amazonite’s color was a mystery. Naturally, many people assumed the color was due to copper because copper compounds often have blue and green colors. More recent studies suggest that the blue-green color results from small quantities of lead and water in the feldspar.

Source: wikipedia.org

Usage

  • bathroom vanity tops
  • claddings
  • Floor tiles
  • kitchen vanity tops
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