Pezzottaite Vs Bertrandite
Origin
Afghanistan
  
Not Available, Southern and central Africa
  
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, pink
  
Colorless, Colorless, Yellow
  
Streak
White
  
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
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.90-3.14
  
2.59-2.60
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Brittle, Metallic, Brittle, Metallic
  
Cleavage
Imperfect; basal
  
{001} Perfect, {110} Distinct, {101} Distinct
  
Mohs Hardness
7.5-8
  
6-7
  
Chemical Composition
(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
  
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
  
Luster
Vitreous
  
Vitreous
  
Pleochroism
Moderate dichroic
  
none.
  
Dispersion
Not Available
  
Not Available
  
Transparency
Transparent
  
TransparentAnthony et al, Handbook of mineralogy (2001)
  
Refractive Index
1.598-1.620
  
1.583-1.614
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Hexagonal
  
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
  
Birefringence
0.008-0.011
  
Not Available
  
Clarity
Transparent
  
TransparentAnthony et al
  
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
  
Pezzottaite Vs Bertrandite Fracture
Fracture is an important parameter when you compare Pezzottaite and Bertrandite Physical Properties. It is necessary to understand the significance of these properties, before you compare Pezzottaite Vs Bertrandite 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 Pezzottaite is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Bertrandite fracture is Brittle, Brittle, Metallic and Metallic.
Pezzottaite Vs Bertrandite Luster
A primary knowledge about Pezzottaite vs Bertrandite 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. Pezzottaite exhibits Vitreous luster. Bertrandite, on other hand, exhibits Vitreous luster.