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.
A primary mineral in hydrothermal veins, stockworks, disseminations
Color
Yellow, Brown, Colorless, White, gray, Brownish, Yellow
Yellow, Green, Black
Streak
White
Yellow, Green, Black, Greenish, 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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Solubility
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Soluble
Durability
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Specific Gravity
2.97-3.03
4.1-4.3
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Uneven, Brittle, Metallic
Cleavage
{001} Poor
Indistinct on {011}
Chemical Composition
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CuFeS 2Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Greasy
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Pleochroism
Weak: pale yellow yellow
AbsentWalter Schumann
Transparency
Gemmological Tables (2004) More from other references
Handbook of mineralogy (2001)
Refractive Index
1.627-1.639
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Optic Character
Biaxial/+
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Crystal System
Orthorhombic
tetragonal
Birefringence
0.006
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Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Handbook of mineralogy (2001)
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 Chalcopyrite Fracture
Fracture is an important parameter when you compare Danburite and Chalcopyrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Danburite Vs Chalcopyrite 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. Chalcopyrite fracture is Brittle, Metallic and Uneven.
Danburite Vs Chalcopyrite Luster
A primary knowledge about Danburite vs Chalcopyrite 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.