Origin
USA, Mexico, Brazil, Switzerland, Sri Lanka, Burma, Madagascar, Color: colorless, light yellow, light pink, Hardness: 7, Refractive index: 1.63 1.64, Density: 2.98 3.03, Chemical composition: Ca(B2Si2O8), Crystal structure: orthorhombic, Origins: USA, Mexico, Brazil, Germany, Switzerland, Sri Lanka, Burma, Madagascar, Japan. Colorless danburites are common, with light pink or yellowish stones being more rare and expensive. Only eye clean pieces are valuable.
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Color
Yellow, Brown, Colorless, White, gray, Brownish, Yellow
Brown
Streak
White
Brownish, Red, Black
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
Brittle
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Solubility
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Durability
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Specific Gravity
2.97-3.03
5.2
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{001} Poor
Good in one direction
Chemical Composition
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Greasy
Resinous
Pleochroism
Weak: pale yellow yellow
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Transparency
Gemmological Tables (2004) More from other references
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Refractive Index
1.627-1.639
2.190-2.457
Optic Character
Biaxial/+
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Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.006
0.083
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentWalter Schumann
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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Danburite Vs Tantalite Fracture
Fracture is an important parameter when you compare Danburite and Tantalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Danburite Vs Tantalite 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 Danburite is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven. Tantalite fracture is ConchoidalArthur Thomas, Gemstones (2009) and Subconchoidal.
Danburite Vs Tantalite Luster
A primary knowledge about Danburite vs Tantalite 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. Danburite exhibits Greasy and Vitreous luster. Tantalite, on other hand, exhibits Resinous luster.