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Epidote Specimen 1

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Original price $150
Current price $140

A bunch of Epidote crystals on matrix with perfect termination.

Dimensions (length, width, height): 8cm x 1.8cm x 9cm

Weight: 180 grams

Origin: Alchuri mine, Shigar valley, Skardu, Pakistan

Color: Green


Cluster of crystals embedded on a plate.

 

 

 EPIDOTE

Epidote is a silicate mineral that is commonly found in regionally metamorphosed rocks of low-to-moderate grade. In these rocks, epidote is often associated with amphiboles, feldspars, quartz, and chlorite. It occurs as replacements of mineral grains that have been altered by metamorphism. It is frequently found in veins that cut granite. It occurs as monoclinic crystals in pegmatites. It is also found in massive form and as monoclinic crystals in marbles and schists that were formed or altered through contact metamorphism.

Epidote usually ranges between yellowish green to pistachio green in color. Less often it is brownish green to black. In massive form it is usually translucent with a vitreous luster. Well-formed crystals from marble and pegmatite are often transparent.

 

Physical Properties of Epidote

Chemical Classification

Silicate

Color

Usually yellowish green to pistachio green, sometimes brownish green to black

Streak

Colorless

Luster

Vitreous to resinous

Diaphaneity

Transparent to translucent to nearly opaque

Cleavage

Perfect in one direction, imperfect

Mohs Hardness

6 to 7

Specific Gravity

3.3 to 3.5

Diagnostic Properties

Color, cleavage, specific gravity

Chemical Composition

Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)

Crystal System

Monoclinic

Uses

Semiprecious gem