Origin
India, Southern and central Africa, Madagascar
  
Canada, USA, Tanzania, Norway
  
Color
Black, Brownish, Greenish
  
Red, Yellow, Brown, Yellow, Red, pink, Green
  
Streak
Brown
  
Not Available
  
For which Rashi?
Not Available
  
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
  
Not Available
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Protection
  
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
3.18-3.22
  
2.62-2.65
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Gemstones of the world (2001)
  
Cleavage
{1011} Indistinct
  
001
  
Mohs Hardness
Not Available
  
6
  
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
  
Luster
Vitreous
  
Vitreous
  
Pleochroism
Very strong: yellow-brown pale yellow
  
Weak or absentWalter Schumann
  
Dispersion
Not Available
  
None
  
Transparency
Transparent, Translucent
  
Transparent, Translucent, Transparent to translucent
  
Refractive Index
1.635-1.672
  
1.53-1.55
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Not Available
  
Triclinic
  
Birefringence
0.025
  
0.007-0.010
  
Clarity
Transparent
  
Transparent to 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
  
Schorl Vs Sunstone Fracture
Fracture is an important parameter when you compare Schorl and Sunstone Physical Properties. It is necessary to understand the significance of these properties, before you compare Schorl Vs Sunstone 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 Schorl is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven. Sunstone fracture is Gemstones of the world (2001).
Schorl Vs Sunstone Luster
A primary knowledge about Schorl vs Sunstone 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. Schorl exhibits Vitreous luster. Sunstone, on other hand, exhibits Vitreous luster.