|Dimensions (mm)||44 x 34 x 6mm|
|Weight (carats)||not provided|
HIGH POLISH CHALCEDONY STONE
WEIGHT : 79.70 CTS
SIZE MM: 44 X 34 X 6
( 6 MM IS APPROX 1/4 INCH )
CODE : G8
Chalcedony ( //) is a cryptocrystalline form of silica, composed of very fine intergrowths of the minerals quartz and moganite. These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic. Chalcedony's standard chemical structure (based on the chemical structure of quartz) is SiO2 (Silicon Dioxide).
Chalcedony has a waxy luster, and may be semitransparent or translucent. It can assume a wide range of colors, but those most commonly seen are white to gray, grayish-blue or a shade of brown ranging from pale to nearly black.
|Starts||3rd Dec 2016 3:02am PST|
|Ends||7th Dec 2016 3:00am PST|
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