Origin
Turkey
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.
Color
Colorless, White, Yellow, White, Greenish, gray, Brown, Colorless, Yellow
Yellow, Brown, Colorless, White, gray, Brownish, Yellow
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
Very brittle
Brittle
Solubility
insoluble
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Durability
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Specific Gravity
3.30-3.40
2.97-3.03
Fracture
Conchoidal, Brittle, Conchoidal
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
{010} perfect, {110} distinct, {100} in traces
{001} Poor
Chemical Composition
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Pearly
Vitreous, Greasy
Pleochroism
Strong
Weak: pale yellow yellow
Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.702-1.750
1.627-1.639
Optic Character
Not Available
Biaxial/+
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.048
0.006
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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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Diaspore Vs Danburite Fracture
Fracture is an important parameter when you compare Diaspore and Danburite Physical Properties. It is necessary to understand the significance of these properties, before you compare Diaspore Vs Danburite 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 Diaspore is Brittle, Conchoidal and Conchoidal. Danburite fracture is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven.
Diaspore Vs Danburite Luster
A primary knowledge about Diaspore vs Danburite 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. Diaspore exhibits Pearly luster. Danburite, on other hand, exhibits Greasy and Vitreous luster.