Origin
USA, Color: blue or violetish blue, colorless, Hardness: 6 6.5, Refractive index: 1.76 1.80, Density: 3.60 3.68, Chemical composition: BaTiSi3O9, Crystal structure: hexagonal, Lustre: vitreous, Origins: San Benito Country, USA. Very rare collectors stone. Found only in San Benito County, California, USA, with specimens over 2 ct. being extremely rare.
  
Southern and central Africa
  
Color
Violet, Blue, Colorless, Blue, pink, White, Colorless
  
Yellow, Brown, Black, Black
  
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
  
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Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Not Available
  
Not Available
  
Solubility
Insoluble: HCl
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.61-3.68
  
4.392
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
[10 1 1] poor
  
{010} moderate, {100} imperfect
  
Mohs Hardness
6-6.5
  
6.5-7
  
Chemical Composition
BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Luster
Vitreous
  
Vitreous, Resinous
  
Pleochroism
O = colorless; E = purple
  
Faint
  
Dispersion
Not Available
  
Transparency
Transparent
  
TransparentAnthony et al, Handbook of mineralogy (2001)
  
Refractive Index
1.757-1.804
  
1.827-1.879
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Hexagonal
  
Orthorhombic
  
Birefringence
0.047
  
0.042-0.051
  
Clarity
Transparent
  
TransparentAnthony et al
  
Physical
  
  
Neurological
Not Available
  
Not Available
  
Cardiovascular
Not Available
  
Not Available
  
Respiratory
Not Available
  
Not Available
  
Reproductive
Not Available
  
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Digestive
Not Available
  
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Psychology
Not Available
  
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Healing
Not Available
  
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Qualities Associated
Not Available
  
Not Available
  
Benitoite Vs Fayalite Fracture
Fracture is an important parameter when you compare Benitoite and Fayalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Benitoite Vs Fayalite 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 Benitoite is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009). Fayalite fracture is Brittle, Conchoidal, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001).
Benitoite Vs Fayalite Luster
A primary knowledge about Benitoite vs Fayalite 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. Benitoite exhibits Vitreous luster. Fayalite, on other hand, exhibits Resinous and Vitreous luster.