CINNABAR FROM CHINA 390.25 CTS [MX8618]

Item Information

Dimensions (mm) not provided
Weight (carats) not provided
Colors
Certified Gemstone

MINERAL GEM WORLD

CINNABAR

This is a natural specimen in its host rock from Guizhou provience China

Weight 390.25 cts app

Size 76 x 44 x 26 mm app


Cinnabar, or cinnabarite (red mercury(II) sulfide (HgS), native vermilion), is the common ore of mercury.

Cinnabar is generally found in a massive, granular or earthy form and is bright scarlet to brick-red in color. It occasionally occurs, however, in crystals with a non-metallic adamantine luster. Cinnabar has a rhombohedral bravais lattice, and belongs to the hexagonal crystal system, trigonal division. Its crystals grow usually in a massive habit, though they are sometimes twinned. The twinning in cinnabar is distinctive and forms a penetration twin that is ridged with six ridges surrounding the point of a pyramid. It could be thought of as two scalahedral crystals grown together with one crystal going the opposite way of the other crystal. The hardness of cinnabar is 2–2.5, and its specific gravity 8.1.

Cinnabar resembles quartz in its symmetry and certain of its optical characteristics. Like quartz, it exhibits birefringence. It has the highest refractive power of any mineral.

1d 10h 37m 18s

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Pricing & Details

Bid Increment $1.00
Starting Bid $57.00
Auction ID 217264
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Starts 1st Dec 2016 7:02pm PST
Ends 5th Dec 2016 7:00pm PST

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