Irisquartz =

Irisquartz = "Cracked Rockcrystal"= "Fire & Ice" semi-trailer from Brazil

Amazonite with tourmaline trailer (flat stone) from Utah / U.S.A.

Amazonite with tourmaline trailer (flat stone) from Utah / U.S.A.

Aragonite - egg XXL, Morocco

"it will be just like wine - wine has to ripen", so also with the brown Aragonite, we have known the stems for many decades from the Atlas Mountains, but it is in early 2019 that I have discovered its beauty. Cut Aragonite is really beautiful!
Availability: In stock
SKU
8930
  • Buy 20 for €3.50 each and save 12%
Aragonite - egg XXL, Morocco is available to buy in increments of 3

The mineral aragonite is a calcium carbonate CaCO3 with chemical formula. It is an unstable polymorph of calcite, and it is therefore difficult to distinguish from calcite, because most of the properties are equal. By means of a color test, a distinction can be made: with a Feigl solution is aragonite black, whereas calcite remains colorless. Moreover, it is slightly harder than aragonite and calcite can be determined by a scratch test to which mineral is involved. A third distinction method is the habitus: aragonite usually grows in needle-shaped crystals (acicular), while calcite has a leaf-shaped habit. Using powder is the difference rather to unequivocally because aragonite has an orthorhombic structure and not as a trigonal calcite. Aragonite is always formed at a low temperature near the earth's surface. Aragonite is found in geysers, hot springs, caves, as oölieten in shallow seas, shells and pearls. Sites in Europe, Aragon (Spain), Limousis (France), Girgenti (Sicily), Bilin (Bohemia) and Eisenertz (Austria).

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Dimensions 50-60mm
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