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Ettringite Vs Gahnospinel


Gahnospinel Vs Ettringite


Astrology

Origin
Southern and central Africa  
Sri Lanka  

Color
Colorless, Yellow, White  
Blue  

Streak
White  
-  

For which Rashi?
-  
Sagittarius, Scorpio  

Planet
-  
Pluto  

Element of Planets
-  
-  

Energy
-  
-  

How to Wear?
  
  

Finger
-  
-  

Ring Metal
-  
-  

Deities
-  
Hephaestus  

Not to wear with
-  
-  

Powers
-  
-  

Birthstone
  
  

Planetary
-  
-  

Talisman
-  
-  

Physical Properties

Tenacity
-  
-  

Solubility
Partially soluble in water  
-  

Durability
-  
-  

Specific Gravity
1.77  
3.65-4.55  

Fracture
-  
Conchoidal  

Cleavage
Perfect on {10 1 0}  
None, but may exhibit slight parting  

Mohs Hardness
2-2.5  
7.5-8  

Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)  
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)  

Optical Properties

Luster
Vitreous  
Vitreous  

Pleochroism
-  
-  

Dispersion
0.04  
36
0.02  
99+

Transparency
Transparent, Translucent  
-  

Refractive Index
1.470-1.491  
1.735-1.790  

Optic Character
-  
-  

Crystal System
Trigonal  
Isometric  

Birefringence
0.021  
-9999  

Clarity
Transparent  
TransparentUlrich Henn and Claudio C. Milisenda  

Benefits

Physical
  
  

Neurological
-  
-  

Cardiovascular
-  
-  

Respiratory
-  
-  

Reproductive
-  
-  

Digestive
-  
-  

Psychology
Adaptability  
Empowerment  

Healing
Emotional healing  
-  

Qualities Associated
Balance  
Transformation  

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Ettringite Vs Gahnospinel Fracture

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

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Ettringite Vs Gahnospinel Luster

A primary knowledge about Ettringite vs Gahnospinel 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. Ettringite exhibits Vitreous luster. Gahnospinel, on other hand, exhibits Vitreous luster.

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