Origin
USA, Mexico
  
Australia
  
Color
Green, Brown, Greenish, Brown, Green, Green, Black
  
White, Colorless, Blue, Red, Green, Yellow, Violet
  
Streak
Greenish, gray, Greenish, gray
  
Not Available
  
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
3.19-3.56
  
1.97-2.22
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
{110} Perfect, {010} Indistinct
  
Not Available
  
Mohs Hardness
5.5-6
  
6-6.5
  
Chemical Composition
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
  
SiO 2 + H 2OUlrich Henn and Claudio C.
  
Luster
Vitreous, Resinous
  
Not Available
  
Pleochroism
Pale green
  
AbsentWalter Schumann
  
Dispersion
Not Available
  
None
  
Transparency
Transparent, Translucent
  
Transparent, Translucent
  
Refractive Index
1.671-1.774
  
1.370-1.470
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
  
Not Available
  
Birefringence
Not Available
  
Not Available
  
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
  
Augite Vs Black Opal Fracture
Fracture is an important parameter when you compare Augite and Black Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Augite Vs Black Opal 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 Augite is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven. Black Opal fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Augite Vs Black Opal Luster
A primary knowledge about Augite vs Black Opal 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. Augite exhibits Resinous and Vitreous luster.