Sellaite

Gahnite

Sellaite Vs Gahnite

Sellaite

Gahnite

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Astrology

Origin

Brazil

Australia

Color

Colorless, White

Blue, Green, Greenish, Black

Streak

White

Grey, gray

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

Durability

Specific Gravity

3.14-3.164.00-4.62

1 7.18

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Fracture

Conchoidal

Conchoidal, Uneven

Cleavage

Perfect on {010} and {110}

Indistinct parting on [111]

Mohs Hardness

5-5.57.5-8

2 10

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Chemical Composition

MgF 2Ulrich Henn and Claudio C.

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

Optical Properties

Luster

Vitreous

Pleochroism

Dispersion

0.030.03

0.005 1

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Transparency

Transparent

Refractive Index

1.378-1.3901.790-1.818

1 3.25

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Optic Character

Crystal System

tetragonal

cubic

Birefringence

0.012-9999

0 0.296

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Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Aids in digestion and soothes the stomach

Reproductive

Digestive

Psychology

Protection

Healing

Emotional healing

Qualities Associated

Emotional Healing

Harmony

Sellaite Vs Gahnite Fracture

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

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Sellaite Vs Gahnite Luster

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