Sugilite

Dravite

Sugilite Vs Dravite

Sugilite

Dravite

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Astrology

Origin

Canada, Southern and central Africa, Italy, Australia, India

Southern and central Africa

Color

Violet, Brownish, Yellow, Reddish, Pale pink

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

Streak

White

Colorless

For which Rashi?

Virgo

Planet

Mercury, Jupiter

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.69-2.793.03-3.18

1 7.18

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Fracture

Conchoidal

Uneven, Irregular, Conchoidal

Cleavage

Poor on {0001}

{???} Indistinct

Mohs Hardness

5.5-6.57-7.5

2 10

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Chemical Composition

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael 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

Vitreous

Pleochroism

Weak

Very strong: pale yellow colorless

Dispersion

0.020.02

0.005 1

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Transparency

Translucent

Transparent

Refractive Index

1.607-1.6121.614-1.666

1 3.25

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Optic Character

Crystal System

Hexagonal

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

Birefringence

0.0030.014-0.032

0 0.296

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Clarity

Translucent

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Excellent

Reproductive

Digestive

Psychology

Spirituality

Self-acceptance

Healing

Emotional healing

Qualities Associated

Spiritual Protection

Self-Exploration

Sugilite Vs Dravite Fracture

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

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Sugilite Vs Dravite Luster

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