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Madagascar, Maroc & Arkansas containers have arrived! Furthermore, a large BACKYARDSALE with 32 tons of rough stones, 173 boxes with rare shells, 117 boxes of Darshan incense and lots of lava images EVERYTHING HAS TO GO! 

 

 

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New! Aragonite angel engraved in Morocco

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New! Aragonite angel engraved in Morocco

Product

New! Aragonite angel engraved in Morocco

Description

Angels cut in gemstone remain popular. Now in 2019 we meet the first hand-angled angels from Morocco. Very nice and especially very favorable in price!

Dimensions

105x90mm

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More information

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).

STRONG TRADEMARKS TIMMERSGEMS GROUP