Sugilite

Gahnite

Sugilite Vs Gahnite

Sugilite

Gahnite

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Astrology

Origin

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

Australia

Color

Violet, Brownish, Yellow, Reddish, Pale pink

Blue, Green, Greenish, Black

Streak

White

Grey, gray

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

2.69-2.794.00-4.62

1 7.18

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Fracture

Conchoidal

Conchoidal, Uneven

Cleavage

Poor on {0001}

Indistinct parting on [111]

Mohs Hardness

5.5-6.57.5-8

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

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous

Pleochroism

Weak

Dispersion

0.020.03

0.005 1

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Transparency

Translucent

Refractive Index

1.607-1.6121.790-1.818

1 3.25

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Optic Character

Crystal System

Hexagonal

cubic

Birefringence

0.003-9999

0 0.296

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Clarity

Translucent

TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Excellent

Aids in digestion and soothes the stomach

Reproductive

Digestive

Psychology

Spirituality

Protection

Healing

Emotional healing

Qualities Associated

Spiritual Protection

Harmony

Sugilite Vs Gahnite Fracture

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

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Sugilite Vs Gahnite Luster

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