Cassiterite

Dravite

Cassiterite Vs Dravite

Cassiterite

Dravite

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Astrology

Origin

Sri Lanka

Southern and central Africa

Color

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

White, Colorless, Blue, Red, Green, Yellow, Violet, Black

Streak

White, Brownish

Colorless

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

Solubility

insoluble

Durability

Specific Gravity

6.86-7.033.03-3.18

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Uneven, Irregular, Conchoidal

Cleavage

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

{???} Indistinct

Mohs Hardness

6-77-7.5

2 10

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Chemical Composition

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

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Optical Properties

Luster

Adamantine, Greasy

Vitreous

Pleochroism

Pleochroic haloes have been observed. Dichroic in yellow

Very strong: pale yellow colorless

Dispersion

0.070.02

0.005 1

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Transparency

Transparent, Translucent

Transparent

Refractive Index

1.990-2.1051.614-1.666

1 3.25

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Optic Character

Crystal System

tetragonal

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

Birefringence

0.096-0.0980.014-0.032

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Poor

Reproductive

Digestive

Psychology

Focus

Self-acceptance

Healing

Emotional healing

Qualities Associated

Manifestation

Self-Exploration

Cassiterite Vs Dravite Fracture

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

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Cassiterite Vs Dravite Luster

A primary knowledge about Cassiterite vs Dravite 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. Dravite, on other hand, exhibits Vitreous luster.