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Dolomite
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Just The Facts |
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Apart from pink, Dolomite is found in a variety of color
shades like white, yellow, gray, brown or black. The darker shade varieties
occur when iron is present in its crystals. |
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Dolomite is the most common member of the sedimentary rock-forming
mineral Dolomite group, which includes Ankerite, Bensonite, Huntite, Kutnohorite,
Minrecordite and Norsethite. Ankerite is the only other somewhat common member
however it is much more scarce than Dolomite. The other members are considered
rare to very rare. |
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Dolomite crystals can be transparent to translucent, and
pearly to vitreous in luster. The luster is unique and is probably the best
illustration of a pearly luster. |
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The pearl-like effect is best seen on the curved crystals
as a sheen of light can sweep across the curved surface. |
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Dolomite is a common sedimentary rock-forming mineral that
can occur in massive beds several hundred feet thick. |
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It is formed from Calcium Magnesium Carbonate (CaMg (CO3)
2). Thus, is used in some cement as a source of magnesium. |
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Dolomite occurrences have been reported in many localities
throughout the world but is most well known from sites in Midwestern quarries
of the USA; Ontario, Canada; Pamplona, Spain; Switzerland; and Mexico. |
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