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
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
For which Rashi?
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Planet
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Element of Planets
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Finger
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Ring Metal
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Energy
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
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Solubility
Insoluble: HCl
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Durability
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Specific Gravity
3.61-3.68
3.03-3.18
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
[10 1 1] poor
{???} Indistinct
Mohs Hardness
6-6.5
7-7.5
Chemical Composition
BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Pleochroism
O = colorless; E = purple
Very strong: pale yellow colorless
Transparency
Transparent
Transparent
Refractive Index
1.757-1.804
1.614-1.666
Optic Character
Not Available
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Crystal System
Hexagonal
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Birefringence
0.047
0.014-0.032
Clarity
Transparent
Transparent
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Benitoite Vs Dravite Fracture
Fracture is an important parameter when you compare Benitoite and Dravite Physical Properties. It is necessary to understand the significance of these properties, before you compare Benitoite Vs Dravite 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). Dravite fracture is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Irregular, Uneven and Uneven.
Benitoite Vs Dravite Luster
A primary knowledge about Benitoite vs Dravite 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. Dravite, on other hand, exhibits Vitreous luster.