Cassiterite

Sillimanite

Cassiterite Vs Sillimanite

Cassiterite

Sillimanite

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Astrology

Origin

Sri Lanka

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

Color

Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray

Blue, Green, Brownish, Greenish, Colorless, gray

Streak

White, Brownish

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

6.86-7.033.20-3.26

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Splintery

Cleavage

{100} imperfect, {110} indistinct; partings on {111} or {011}

{010} perfect

Mohs Hardness

6-76-7.5

2 10

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Chemical Composition

SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Optical Properties

Luster

Adamantine, Greasy

Vitreous, Subadamantine, Silky

Pleochroism

Pleochroic haloes have been observed. Dichroic in yellow

Colourless to pale brown to yellow

Dispersion

0.070.02

0.005 1

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Transparency

Transparent, Translucent

Refractive Index

1.990-2.1051.653-1.685

1 3.25

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Optic Character

Crystal System

tetragonal

Orthorhombic

Birefringence

0.096-0.0980.020-0.022

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Poor

Good

Reproductive

Digestive

Psychology

Focus

Creativity

Healing

Emotional healing

Qualities Associated

Manifestation

Creativity

Cassiterite Vs Sillimanite Fracture

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

Compare Red Gemstones

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Cassiterite Vs Sillimanite Luster

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