LARGE PINK DOLOMITE SPECIMEN 1796 CARATS GT 1924

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LARGE PINK DOLOMITE SPECIMEN

SOURCE MEXICO

SIZE 85 X84 X 44  MM

 

 

The Dolomite Group is composed of minerals with an unusual Crystal Trigonal bar 3 symmetry.

Pink Dolomite is found in USA, Spain n Mexico

 The general formula of this group is AB(CO3)2, where A can be either calcium, barium and/or strontium and the B can be either iron, magnesium, zinc and/or manganese.

The structure of the Dolomite Group is taken from the Calcite Group structure. The Calcite Group structure is layered with alternating carbonate layers and metal ion layers. The structure of the Dolomite Group minerals is layered in such a way that the A metal ions occupy one layer which is followed by a carbonate layer which is followed by the B metal ion layer followed by another carbonate (CO3) layer, etc.

$45.00 USD

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Auction ID 219352
Watchers 3 watching
Viewed 2,001 times
Starts 11th Apr 2011 6:57pm PDT

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