Spodumene

Sillimanite

Spodumene Vs Sillimanite

Spodumene

Sillimanite

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Astrology

Origin

Afghanistan, Australia, Brazil, Madagascar, Pakistan, Canada

USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil

Color

Green, White

Blue, Green, Brownish, Greenish, Colorless, gray

Streak

White

For which Rashi?

Planet

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Tough

Solubility

insoluble

Durability

Specific Gravity

3.15-3.213.20-3.26

1 7.18

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Fracture

Uneven, Subconchoidal

Splintery

Cleavage

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

{010} perfect

Mohs Hardness

6-76-7.5

2 10

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Chemical Composition

LiAlSi₂O₆

Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous

Vitreous, Subadamantine, Silky

Pleochroism

Strong in kunzite: α-purple

Colourless to pale brown to yellow

Dispersion

0.020.02

0.005 1

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Transparency

Transparent

Transparent, Translucent

Refractive Index

1.657-1.6811.653-1.685

1 3.25

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Optic Character

Crystal System

monoclinic

Orthorhombic

Birefringence

0.014-0.0180.020-0.022

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Emotional Healing

Creativity

Healing

Emotional healing

Qualities Associated

Peace

Creativity

Spodumene Vs Sillimanite Fracture

Fracture is an important parameter when you compare Spodumene and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Spodumene Vs Sillimanite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Spodumene is Uneven and Subconchoidal. Sillimanite fracture is Splintery.

Compare Green Gemstones

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Spodumene Vs Sillimanite Luster

A primary knowledge about Spodumene vs Sillimanite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Spodumene exhibits Vitreous luster. Sillimanite, on other hand, exhibits Vitreous, Subadamantine and Silky luster.