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Gahnite
Gahnite

Sapphire
Sapphire



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Gahnite
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Sapphire

Gahnite Vs Sapphire

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Astrology

Origin

Australia
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA

Color

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

Streak

Grey, gray
-

For which Rashi?

-
Pisces, Taurus, Gemini, Libra

Planet

-
Saturn

Element of Planets

-
Water

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

-
Apollo

Not to wear with

-
-

Powers

-
Psychic Power

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

-
-

Solubility

-
insoluble

Durability

-
-

Specific Gravity

4.00-4.623.95-4.03
1 7.18
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Fracture

Conchoidal, Uneven
Uneven

Cleavage

Indistinct parting on [111]
None, but may exhibit parting

Mohs Hardness

7.5-89
2 10
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Chemical Composition

ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)
Al 2 O 3

Optical Properties

Luster

Vitreous
Vitreous, Adamantine

Pleochroism

-
Strong

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to opaque

Refractive Index

1.790-1.8181.762-1.788
1 3.25
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Optic Character

-
-

Crystal System

cubic
Trigonal

Birefringence

-99990.008-0.009
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus
Enhances mental clarity and focus

Cardiovascular

-
-

Respiratory

Aids in digestion and soothes the stomach
Good

Reproductive

-
-

Digestive

-
-

Psychology

Protection
Intuition

Healing

Emotional healing
Emotional healing

Qualities Associated

Harmony
Wisdom

Gahnite Vs Sapphire Fracture

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

Gahnite Vs Sapphire Luster

A primary knowledge about Gahnite vs Sapphire 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 exhibits Vitreous luster. Sapphire, on other hand, exhibits Vitreous and Adamantine luster.