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Star Sapphire
Star Sapphire

Gahnite
Gahnite



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Star Sapphire
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Gahnite

Star Sapphire Vs Gahnite

Astrology

Origin

Southern and central Africa
Australia

Color

Yellow, Green, Blue, Violet
Blue, Green, Greenish, Black

Streak

-
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

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.90-4.054.00-4.62
1 7.18
👆🏻

Fracture

-
Conchoidal, Uneven

Cleavage

None
Indistinct parting on [111]

Mohs Hardness

-99997.5-8
2 10
👆🏻

Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

-
Vitreous

Pleochroism

-
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.758-1.7801.790-1.818
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
cubic

Birefringence

0.007-0.010-9999
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

-
Enhances mental clarity and focus

Cardiovascular

-
-

Respiratory

Good
Aids in digestion and soothes the stomach

Reproductive

-
-

Digestive

-
-

Psychology

Wisdom
Protection

Healing

Emotional healing
Emotional healing

Qualities Associated

Wisdom
Harmony

Star Sapphire Vs Gahnite Fracture

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

Star Sapphire Vs Gahnite Luster

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