EPIDOTE QUARTZ 31.25 CTS PG-184

Item Information

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

 

 

QUARTZ EPIDOTE

BRAZIL

NICE STRAW LIKE NATURAL LINES

IDEAL FOR DESIGNER JEWELRY

TREATMENT-NONE

WEIGHT : 31.25 CTS APPROX

SIZE:  31  X  20  X  8  MM APPROX

A rock composed of quartz and epidote is known as epidosite

Epidote is a ,CALCIUM, ALUMINIUM ,IORN  SOROSILICATE MINERAL Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH), in the MOMOCLINIC system. Well-developed crystals are of frequent occurrence: they are commonly prismatic in habit, the direction of elongation being perpendicular to the single plane of symmetry. The faces are often deeply striated and crystals are often twinned. Many of the characters of the mineral vary with the amount of iron present for instance, the color, the optical constants, and the specific gravity. The color is green, grey, brown or nearly black, but usually a characteristic shade of yellowish-green or pistachio-green. It displays strong ,PLEOCHROISM the pleochroic colors being usually green, yellow and brown. CLINOZOISITE is white or pale rose-red variety containing very little iron, thus having the same chemical composition as the  ORTHORHOMBICmineral ZOISITE The name is derived from the Greek word "epidosis" (επίδοσις) whicHmeans "addition."

$36.00 USD

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Pricing & Details

Auction ID 248138
Watchers 7 watching
Viewed 1,086 times
Starts 13th Nov 2011 10:18am PST

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