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Dravite Vs Fayalite


Fayalite Vs Dravite


Astrology

Origin
Southern and central Africa  
Southern and central Africa  

Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black  
Yellow, Brown, Black  

Streak
Colorless  
White  

For which Rashi?
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-  

Planet
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-  

Element of Planets
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-  

Energy
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-  

How to Wear?
  
  

Finger
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Ring Metal
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-  

Deities
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-  

Not to wear with
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Powers
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-  

Birthstone
  
  

Planetary
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-  

Talisman
-  
-  

Physical Properties

Tenacity
-  
-  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
3.03-3.18  
4.392  

Fracture
Uneven, Irregular, Conchoidal  
Conchoidal  

Cleavage
{???} Indistinct  
{010} moderate, {100} imperfect  

Mohs Hardness
7-7.5  
6.5-7  

Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)  
Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)  

Optical Properties

Luster
Vitreous  
Vitreous, Resinous  

Pleochroism
Very strong: pale yellow colorless  
Faint  

Dispersion
0.02  
99+
0.03  
99+

Transparency
Transparent  
TransparentAnthony et al  

Refractive Index
1.614-1.666  
1.827-1.879  

Optic Character
-  
-  

Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m  
Orthorhombic  

Birefringence
0.014-0.032  
0.042-0.051  

Clarity
Transparent  
TransparentAnthony et al  

Benefits

Physical
  
  

Neurological
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-  

Cardiovascular
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-  

Respiratory
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Good  

Reproductive
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Digestive
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Psychology
Self-acceptance  
Creativity  

Healing
Emotional healing  
Physical healing  

Qualities Associated
Self-Exploration  
Creativity  

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Dravite Vs Fayalite Fracture

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

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Dravite Vs Fayalite Luster

A primary knowledge about Dravite vs Fayalite 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. Dravite exhibits Vitreous luster. Fayalite, on other hand, exhibits Vitreous and Resinous luster.

Blue Gemstones

Blue Gemstones


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