Origin
Mexico
  
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
  
Color
Colorless, White, Colorless, Greenish, Brown, White, Colorless, Greenish, Brown, White, Colorless, Greenish, Brown
  
Colorless, Yellow, Green, Violet, White, Colorless, Blue, Red, Green, Yellow, pink
  
Streak
White
  
Not Available
  
For which Rashi?
Not Available
  
Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra
  
Planet
Not Available
  
Saturn
  
Element of Planets
Not Available
  
Water
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Receptive
  
Deities
Not Available
  
Apollo
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Psychic Power, Prosperity
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Flexible
  
Not Available
  
Solubility
Soluble
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.20-2.40
  
3.95-4.03
  
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Perfect on {010}, distinct on {100}
  
None, but may exhibit parting
  
Mohs Hardness
2
  
9
  
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
  
Al 2 O 3
  
Luster
Vitreous, Silky, Pearly, Waxy
  
Vitreous, Adamantine, Vitreous, Adamantine
  
Pleochroism
None
  
Strong
  
Dispersion
Not Available
  
Transparency
Transparent, Translucent
  
Transparent, Translucent, Transparent to opaque
  
Refractive Index
1.521-1.531
  
1.762-1.788
  
Optic Character
Not Available
  
Not Available
  
Crystal System
monoclinic
  
Trigonal
  
Birefringence
0.010
  
0.008-0.009
  
Clarity
Transparent
  
Transparent
  
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
  
Gypsum Vs Sapphire Fracture
Fracture is an important parameter when you compare Gypsum and Sapphire Physical Properties. It is necessary to understand the significance of these properties, before you compare Gypsum Vs Sapphire 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 Gypsum is Conchoidal, Fibrous, Gemstones (2009), Splintery and UnevenArthur Thomas. Sapphire fracture is Gems, Sixth Edition (2006), Uneven and Uneven.
Gypsum Vs Sapphire Luster
A primary knowledge about Gypsum vs Sapphire 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. Gypsum exhibits Pearly, Silky, Vitreous and Waxy luster. Sapphire, on other hand, exhibits Adamantine, Adamantine, Vitreous and Vitreous luster.