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Muscovite Vs Sillimanite


Sillimanite Vs Muscovite


Astrology

Origin
India   
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil   

Color
Colorless, White, gray, Brownish, Greenish   
Blue, Green, Brownish, Greenish, Colorless, gray   

Streak
White   
White   

For which Rashi?
Not Available   
Not Available   

Planet
Not Available   
Not Available   

Element of Planets
Not Available   
Not Available   

How to Wear?
  
  

Finger
Not Available   
Not Available   

Ring Metal
Not Available   
Not Available   

Energy
Not Available   
Not Available   

Deities
Not Available   
Not Available   

Not to wear with
Not Available   
Not Available   

Powers
Not Available   
Not Available   

Birthstone
  
  

Planetary
Not Available   
Not Available   

Talisman
Not Available   
Not Available   

Physical Properties

Tenacity
Elastic   
Tough   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.78-2.88   
3.20-3.26   

Fracture
Micaceous, Brittle   
Splintery   

Cleavage
Perfect on the {001}   
{010} perfect   

Mohs Hardness
2-3   
6-7.5   

Chemical Composition
KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references   
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties

Luster
Vitreous, Silky, Pearly   
Vitreous, Subadamantine, Silky   

Pleochroism
Weak   
Colourless to pale brown to yellow   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Transparent, Translucent   

Refractive Index
1.552-1.618   
1.653-1.685   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Orthorhombic   

Birefringence
Not Available   
0.020-0.022   

Clarity
Transparent   
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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Muscovite Vs Sillimanite Fracture

Fracture is an important parameter when you compare Muscovite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Muscovite Vs Sillimanite 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 Muscovite is Brittle and Micaceous. Sillimanite fracture is Splintery.

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Muscovite Vs Sillimanite Luster

A primary knowledge about Muscovite vs Sillimanite 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. Muscovite exhibits Pearly, Silky and Vitreous luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.

Colorless Gems

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