Origin
Not Available, Southern and central Africa
  
Mexico
  
Color
Not Available
  
Colorless, Blue, Violet, White, Brown, Colorless, Blue, Violet, White, rose, Brown, gray, Colorless, White, Violet, gray, Colorless, White, Violet, gray
  
Streak
Not Available
  
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
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.98-2.50
  
2.90-2.98
  
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
Not Available
  
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
  
Mohs Hardness
5.5-6.5
  
3.5
  
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
  
Luster
Not Available
  
Pearly, Greasy
  
Pleochroism
AbsentWalter Schumann
  
For violet varieties
  
Dispersion
None
  
Transparency
Translucent
  
Transparent
  
Refractive Index
1.37-1.52
  
1.570-1.614
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Not Available
  
Orthorhombic
  
Birefringence
Not Available
  
0.042-0.044
  
Clarity
Translucent
  
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
  
Agate Opal Vs Anhydrite Fracture
Fracture is an important parameter when you compare Agate Opal and Anhydrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Agate Opal Vs Anhydrite 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 Agate Opal is Conchoidal, Conchoidal and Gemstones of the world (2001). Anhydrite fracture is Brittle, Brittle, Conchoidal, Conchoidal, Conchoidal, Gemstones (2009) and UnevenArthur Thomas.
Agate Opal Vs Anhydrite Luster
A primary knowledge about Agate Opal vs Anhydrite 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. Anhydrite, on other hand, exhibits Greasy and Pearly luster.