Origin
Not Available, Southern and central Africa
  
Not Available, blue
  
Color
Colorless, Colorless, Yellow
  
Blue, Blue, Green, Blue, Blue
  
Streak
White
  
Blue
  
For which Rashi?
Not Available
  
Sagittarius, Capricorn, Sagittarius, Capricorn, Sagittarius, Capricorn
  
Planet
Not Available
  
Venus
  
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
  
Goddess
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Psychic Power
  
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
2.59-2.60
  
3.70-3.90
  
Fracture
Brittle, Metallic, Brittle, Metallic
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
{001} Perfect, {110} Distinct, {101} Distinct
  
Perfect on {011}, fair on {100}, poor on {110}
  
Mohs Hardness
6-7
  
3.5-4
  
Chemical Composition
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
  
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Luster
Vitreous
  
Vitreous
  
Pleochroism
none.
  
Visible shades of blue
  
Dispersion
Not Available
  
Not Available
  
Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
  
Transparent, Translucent
  
Refractive Index
1.583-1.614
  
1.720-1.850
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
  
monoclinic
  
Birefringence
Not Available
  
0.108
  
Clarity
TransparentAnthony et al
  
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
  
Bertrandite Vs Azurite Fracture
Fracture is an important parameter when you compare Bertrandite and Azurite Physical Properties. It is necessary to understand the significance of these properties, before you compare Bertrandite Vs Azurite 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 Bertrandite is Brittle, Brittle, Metallic and Metallic. Azurite fracture is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009).
Bertrandite Vs Azurite Luster
A primary knowledge about Bertrandite vs Azurite 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. Bertrandite exhibits Vitreous luster. Azurite, on other hand, exhibits Vitreous luster.