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Gahnite Vs Sapphire


Sapphire Vs Gahnite


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, Colorless, Blue, Red, Green, Yellow, pink   

Streak
Grey, gray   
Not Available   

For which Rashi?
Not Available   
Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra   

Planet
Not Available   
Saturn   

Element of Planets
Not Available   
Water   

How to Wear?
  
  

Finger
Not Available   
Not Available   

Ring Metal
Not Available   
Not Available   

Energy
Not Available   
Receptive   

Deities
Not Available   
Apollo   

Not to wear with
Not Available   
Not Available   

Powers
Not Available   
Psychic Power, Prosperity   

Birthstone
  
  

Planetary
Not Available   
Not Available   

Talisman
Not Available   
Not Available   

Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
insoluble   

Durability
Not Available   
Not Available   

Specific Gravity
4.00-4.62   
3.95-4.03   

Fracture
Conchoidal, Uneven   
Uneven, Uneven, Gems, Sixth Edition (2006)   

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

Mohs Hardness
7.5-8   
9   

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

Optical Properties

Luster
Vitreous   
Vitreous, Adamantine, Vitreous, Adamantine   

Pleochroism
Not Available   
Strong   

Dispersion
Not Available   
0.02   
21

Transparency
Gemmological Tables (2004) More from other references   
Transparent, Translucent, Transparent to opaque   

Refractive Index
1.790-1.818   
1.762-1.788   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
Trigonal   

Birefringence
Not Available   
0.008-0.009   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

Benefits

Physical
  
  

Neurological
Not Available   
Not Available   

Cardiovascular
Not Available   
Not Available   

Respiratory
Not Available   
Not Available   

Reproductive
Not Available   
Not Available   

Digestive
Not Available   
Not Available   

Psychology
Not Available   
Not Available   

Healing
Not Available   
Not Available   

Qualities Associated
Not Available   
Not Available   

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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 Gems, Sixth Edition (2006), Uneven and Uneven.

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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 Adamantine, Adamantine, Vitreous and Vitreous luster.

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