Sillimanite

Zincite

Sillimanite Vs Zincite

Sillimanite

Zincite

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Astrology

Origin

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

USA

Color

Blue, Green, Brownish, Greenish, Colorless, gray

Yellow, Red, Green, Colorless, orange

Streak

White

Yellow, yellowish orange

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

Tough

Brittle

Solubility

Durability

Specific Gravity

3.20-3.265.50-5.90

1 7.18

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Fracture

Splintery

Conchoidal

Cleavage

{010} perfect

On {10 1 0}, perfect; parting on {000 1 }

Mohs Hardness

6-7.54

2 10

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Chemical Composition

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

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous, Subadamantine, Silky

Subadamantine, Resinous

Pleochroism

Colourless to pale brown to yellow

Very weak

Dispersion

0.020.16

0.005 1

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Transparency

Transparent, Translucent

TransparentRobert C. Kammerling

Refractive Index

1.653-1.6852.013-2.029

1 3.25

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Optic Character

Crystal System

Orthorhombic

Hexagonal

Birefringence

0.020-0.0220.016

0 0.296

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Clarity

Transparent

TransparentRobert C. Kammerling

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Passion

Healing

Emotional healing

Qualities Associated

Creativity

Sillimanite Vs Zincite Fracture

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

Compare Blue Gemstones

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Sillimanite Vs Zincite Luster

A primary knowledge about Sillimanite vs Zincite 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. Sillimanite exhibits Vitreous, Subadamantine and Silky luster. Zincite, on other hand, exhibits Subadamantine and Resinous luster.