Chrysoprase tumbled stones from Uzbekistan (new find 2021)

Chrysoprase tumbled stones from Uzbekistan (new find 2021)

Purple Fluorite tumbled stones from Mayanmar (Former Burma) new stone in 2021.

Purple Fluorite tumbled stones from Mayanmar (Former Burma) new stone in 2021.

Pink Aragonite ("Mangano Aragonite") tumbled stones from Patagonia Argentina (new in 2021)

"The 43rd Tucson Fair of 2021", we will not experience this because of this. Corona, and Arizona / USA which has a negative travel advice! We did, however, approach our regular suppliers and have their latest products sent, including this product!
Availability: In stock
SKU
10595
  • Buy 500 for €0.20 each and save 20%
  • Buy 1000 for €0.15 each and save 40%
Pink Aragonite ("Mangano Aragonite") tumbled stones from Patagonia Argentina (new in 2021) is available to buy in increments of 100

The mineral aragonite is a calcium carbonate with chemical formula CaCO3. It is an unstable polymorph of calcite and is therefore difficult to distinguish from calcite since most of its properties are the same. A distinction can be made by means of a color test: with a Feigl solution, aragonite turns black, while calcite remains colorless. Moreover, aragonite is slightly harder than calcite and can be determined by means of a scratch test which mineral is involved. A third distinguishing method is habit: aragonite usually grows in needle-shaped crystals (acicular), while calcite has a leaf-shaped habit. With the help of powder diffraction the difference can be clearly determined because aragonite has an orthorhombic structure and not a trigonal one like calcite. Aragonite is always formed at low temperatures close to the earth's surface. Aragonite is found in geysers, hot springs, caves, as oolites in shallow seas, in shells, and in pearls. Locations in Europe are Aragón (Spain), Limousis (France), Girgenti (Sicily), Bilin (Bohemia) and Eisenertz (Austria).

More Information
Dimensions 20-30mm
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