|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
DOLOMITE SPECIMEN MINERAL
SOURCE FROM MOROCCO
SIZE 47X 30X 20 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.
i just received my pendant in the post today and it's beautiful! Parcel was posted immediately after payment and delivery time was just over a week, which is great. A real pleasure dealing with this seller.ASSORTED GEMS 10KT WHITE GOLD PENDANT 3.40 CTS GTJA352
|Starts||26th Oct 2016 9:02pm PDT|
|Ends||27th Oct 2016 9:00pm PDT|
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