|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
MINERAL GEM WORLD
This is a natural specimen in its host rock from Guizhou provience China.
This is a rare mineral and it is considered a collectors item
Weight 410 cts app
Size 60X35X25 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.
|Starts||21st Jan 2019 9:40pm PST|
|Ends||22nd Jan 2019 3:24pm PST|
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