Scheelite

Sillimanite

Scheelite Vs Sillimanite

Scheelite

Sillimanite

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Astrology

Origin

Switzerland, Australia, Brazil

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

Color

Yellow, Colorless, White, Brownish, Reddish

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

Durability

Specific Gravity

5.9-6.33.20-3.26

1 7.18

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Fracture

Conchoidal, Uneven

Splintery

Cleavage

On {101}, distinct; on {112}, interrupted; on {001}, indistinct

{010} perfect

Mohs Hardness

4.5-56-7.5

2 10

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Chemical Composition

CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Optical Properties

Luster

Vitreous, Adamantine

Vitreous, Subadamantine, Silky

Pleochroism

Definite dichoric in yellow (yellow to orange-brown)

Colourless to pale brown to yellow

Dispersion

0.040.02

0.005 1

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Transparency

Translucent, Transparent

Transparent, Translucent

Refractive Index

1.918-1.9361.653-1.685

1 3.25

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Optic Character

Crystal System

tetragonal

Orthorhombic

Birefringence

0.0160.020-0.022

0 0.296

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Clarity

Translucent

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Awareness

Creativity

Healing

Physical healing

Emotional healing

Qualities Associated

Balance & Clarity

Creativity

Scheelite Vs Sillimanite Fracture

Fracture is an important parameter when you compare Scheelite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Scheelite 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 Scheelite is Conchoidal and Uneven. Sillimanite fracture is Splintery.

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Scheelite Vs Sillimanite Luster

A primary knowledge about Scheelite 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. Scheelite exhibits Vitreous and Adamantine luster. Sillimanite, on other hand, exhibits Vitreous, Subadamantine and Silky luster.