Gedrite Vs Pargasite
Origin
Southern and central Africa
  
Southern and central Africa, Vietnam
  
Color
Brown, Brown, Green, Green, gray, White
  
Green, Black, Brown
  
Streak
gray, White, gray, 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
  
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.15-3.259
  
3.04-3.26
  
Fracture
Not Available
  
Splintery, Brittle, Uneven
  
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
  
{110} perfect
  
Mohs Hardness
5.5-6
  
5-6
  
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
  
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Luster
Fibrous, Vitreous
  
Vitreous
  
Pleochroism
Weak to moderate
  
Not Available
  
Dispersion
Not Available
  
Not Available
  
Transparency
Transparent
  
Transparent
  
Refractive Index
1.625-1.718
  
1.613-1.663
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
  
monoclinic
  
Birefringence
Not Available
  
0.020
  
Clarity
Transparent
  
Transparent
  
Physical
  
  
Neurological
Not Available
  
Not Available
  
Cardiovascular
Not Available
  
Not Available
  
Respiratory
Not Available
  
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Reproductive
Not Available
  
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Digestive
Not Available
  
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Psychology
Not Available
  
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Healing
Not Available
  
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Qualities Associated
Not Available
  
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Gedrite Vs Pargasite Fracture
Fracture is an important parameter when you compare Gedrite and Pargasite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gedrite Vs Pargasite 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. Pargasite fracture is Brittle, Splintery and Uneven.
Gedrite Vs Pargasite Luster
A primary knowledge about Gedrite vs Pargasite 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. Gedrite exhibits Fibrous and Vitreous luster. Pargasite, on other hand, exhibits Vitreous luster.