Pollucite Vs Sard
Origin
Afghanistan, Southern and central Africa
  
Southern and central Africa
  
Color
Grey, White, Colorless, gray, Pale pink, Blue
  
White, Colorless, Blue, Red, Green, Yellow, Violet
  
Streak
White
  
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
Brittle
  
Not Available
  
Solubility
Readily soluble in HF
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.86-2.94
  
2.58-2.63
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
None observed
  
Not Available
  
Mohs Hardness
6.5-7
  
6.5-7
  
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
  
SiO 2Ulrich Henn and Claudio C.
  
Luster
Vitreous, Greasy
  
Waxy
  
Pleochroism
Not Available
  
AbsentWalter Schumann
  
Dispersion
None
  
Transparency
Transparent, Translucent
  
Translucent
  
Refractive Index
1.517-1.525
  
1.535-1.539
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Isometric
  
Not Available
  
Birefringence
Not Available
  
0.008-0.010
  
Clarity
Transparent
  
Translucent
  
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
  
Pollucite Vs Sard Fracture
Fracture is an important parameter when you compare Pollucite and Sard Physical Properties. It is necessary to understand the significance of these properties, before you compare Pollucite Vs Sard 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 Pollucite is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Sard fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Pollucite Vs Sard Luster
A primary knowledge about Pollucite vs Sard 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. Pollucite exhibits Greasy and Vitreous luster. Sard, on other hand, exhibits Waxy luster.