Origin
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
  
Not Available
  
Color
Colorless, gray, Yellow, White
  
Red
  
Streak
Colorless
  
White
  
For which Rashi?
Not Available
  
Taurus, Leo, Taurus, Leo, Taurus, Leo
  
Planet
Not Available
  
Sun
  
Element of Planets
Not Available
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Projective
  
Deities
Not Available
  
Isis, Bragi
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Protection, Healing, Courage
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Brittle
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.40
  
2.58-2.64
  
Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
  
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
  
Absent
  
Mohs Hardness
6-6.5
  
6.5-7
  
Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
SiO2
  
Luster
Vitreous, Pearly
  
Vitreous
  
Pleochroism
AbsentWalter Schumann
  
AbsentWalter Schumann
  
Dispersion
None
  
Transparency
Gemmological Tables (2004) More from other references
  
Translucent, Transparent to nearly opaque
  
Refractive Index
1.502-1.523
  
1.535-1.539
  
Optic Character
Not Available
  
Not Available
  
Crystal System
monoclinic
  
Trigonal
  
Birefringence
0.012-0.016
  
0.003-0.009
  
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
  
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
  
Petalite Vs Carnelian Fracture
Fracture is an important parameter when you compare Petalite and Carnelian Physical Properties. It is necessary to understand the significance of these properties, before you compare Petalite Vs Carnelian 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 Petalite is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references and Subconchoidal. Carnelian fracture is Conchoidal, Gemstones of the world (2001), Splintery, Uneven and UnevenWalter Schumann.
Petalite Vs Carnelian Luster
A primary knowledge about Petalite vs Carnelian 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. Petalite exhibits Pearly and Vitreous luster. Carnelian, on other hand, exhibits Vitreous luster.