Origin
Australia
  
Sri Lanka, India, Brazil
  
Color
Green, Blue
  
Green, Brown, Brown, Colorless, Green, gray, Yellow
  
Streak
White
  
Brownish, White, Brownish, White
  
For which Rashi?
Cancer, Gemini, Cancer, Gemini, Cancer, Gemini
  
Not Available
  
Planet
Moon
  
Not Available
  
Element of Planets
Water
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Receptive
  
Not Available
  
Deities
Venus
  
Not Available
  
Not to wear with
Not Available
  
Not Available
  
Powers
Protection, Love, Money
  
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
2.60-2.85
  
3.55-3.73
  
Fracture
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
  
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
none
  
none
  
Mohs Hardness
2.5-4.5
  
7-7.5
  
Chemical Composition
Not Available
  
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  
Luster
Pearly
  
Greasy, Vitreous
  
Pleochroism
AbsentWalter Schumann
  
None
  
Dispersion
None
  
Transparency
Translucent, Opaque
  
Gemmological Tables (2004) More from other references
  
Refractive Index
1.52-1.66
  
1.730-1.760
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Orthorhombic
  
cubic
  
Birefringence
0.156
  
0.020
  
Clarity
Translucent
  
TransparentUlrich Henn and Claudio C. Milisenda
  
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
  
Pearl Vs Grossular Fracture
Fracture is an important parameter when you compare Pearl and Grossular Physical Properties. It is necessary to understand the significance of these properties, before you compare Pearl Vs Grossular 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 Pearl is Gemstones of the world (2001), Gemstones of the world (2001) and UnevenWalter Schumann. Grossular fracture is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Pearl Vs Grossular Luster
A primary knowledge about Pearl vs Grossular 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. Pearl exhibits Pearly luster. Grossular, on other hand, exhibits Greasy and Vitreous luster.