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EPIDOTE CRYSTAL CLUSTER

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In stock


Epidote Crystal Cluster comprising of about a dozen various sized crystals with partial crystals.  Dark green almost black this specimen was hard to photograph.  For enhanced display it is mounted on a perspex display pad.

Dimensions:
4.8cm x 4.8cm x 4cm, 86g.

Location:
Skardu, Pakistan.

Calcium Aluminum Iron Silicate Hydroxide
Ca2(Al, Fe)3(SiO4)3(OH)

$81 $90

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In stock

EPIDOTE CRYSTAL CLUSTEREPIDOTE CRYSTAL CLUSTER

An Epidote Crystal Cluster comprising of about a dozen various sized crystals with partial crystals.  Dark green almost black this specimen was hard to photograph.  For enhanced display it is mounted on a perspex display pad.

Dimensions:
4.8cm x 4.8cm x 4cm, 86g.

Location:
Shengus, Skardu, Pakistan.

Epidote Sample Images MAGNETIC EPIDOTE CRYSTAL CLUSTEREPIDOTE CRYSTAL STACK SPECIMENEPIDOTE CRYSTAL CLUSTERPREHNITE EPIDOTE MINERAL SPECIMEN

Epidote
Calcium Aluminum Iron Silicate Hydroxide
Ca2(Al, Fe)3(SiO4)3(OH)

Epidote Crystal Habits include long, prismatic or tabular crystals.  The terminations are wedge shaped or tapered pyramids. Many clusters show grooved slender crystals or acicular sprays. Also massive, fiberous or granular.

Epidote is a structurally complex mineral having both single silicate tetrahedrons, SiO4, and double silicate tetrahedrons, Si2O7.   The two Aluminums represent the parallel chains of AlO6 and AlO4(OH)2 Octahedra that are the heart of the Epidote structure.  The silicate groups and extra ions connect the chains together.  Since the chains are parallel, the crystals tend to be prismatic.  Epidote, while not general known for exceptional crystals can produce some magnificent specimens.

Properties

Color is “pistachio” green to yellowish or brownish green, also brown to black.
Luster is vitreous.
Transparency crystals are transparent to translucent.
Crystal System monoclinic; 2/m
Crystal Habits include long, prismatic or tabular crystals with a typically dominant pinacoid that the crystal is often flattened against. The terminations are wedge shaped or tapered pyramids. Many clusters show grooved slender crystals or acicular sprays. Also massive, fiberous or granular.
Cleavage good in one direction lengthwise.
Fracture is uneven to conchoidal.
Hardness is 6-7
Specific Gravity is 3.3-3.5
Streak white to gray
Associated Minerals calcite, biotite, hornblende, actinolite, andradite garnet and other metamorphic minerals.
Other Characteristics: striated to the depth of grooves in some crystals.
Notable Occurances Untersulzbachtal, Austria; Italy; Baja, Mexico and many localities in the USA.
Best Field Indicators only one direction of cleavage, crystal habit, color and hardness.

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Weight 200 g
Dimensions 12 × 10 × 8 cm

Epidote Crystal Cluster comprising of about a dozen various sized crystals with partial crystals.  Dark green almost black this specimen was hard to photograph.  For enhanced display it is mounted on a perspex display pad.

Dimensions:
4.8cm x 4.8cm x 4cm, 86g.

Location:
Skardu, Pakistan.

Calcium Aluminum Iron Silicate Hydroxide
Ca2(Al, Fe)3(SiO4)3(OH)

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