Uvite

Sillimanite

Uvite Vs Sillimanite

Uvite

Sillimanite

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Astrology

Origin

Sri Lanka

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

Color

Red, Brown, Black

Blue, Green, Brownish, Greenish, Colorless, gray

Streak

Brown

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

Tough

Solubility

Durability

Specific Gravity

2.97-3.143.20-3.26

1 7.18

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Fracture

Uneven, Conchoidal

Splintery

Cleavage

{1011} Indistinct

{010} perfect

Mohs Hardness

-99996-7.5

2 10

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Chemical Composition

Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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

Optical Properties

Luster

Vitreous

Vitreous, Subadamantine, Silky

Pleochroism

Pale yellow colorlessAnthony et al

Colourless to pale brown to yellow

Dispersion

0.020.02

0.005 1

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Transparency

Transparent

Transparent, Translucent

Refractive Index

1.614-1.6661.653-1.685

1 3.25

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Optic Character

Crystal System

Orthorhombic

Birefringence

0.014-0.0320.020-0.022

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Cardiovascular

Supports heart health

Respiratory

Good

Reproductive

Digestive

Psychology

Empowerment

Creativity

Healing

Emotional healing

Qualities Associated

Empowerment

Creativity

Uvite Vs Sillimanite Fracture

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

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Uvite Vs Sillimanite Luster

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