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, Germany, Japan. Colorless danburites are common, with light pink or yellowish stones being more rare and expensive. Only eye clean pieces are valuable.
Afghanistan, Sri Lanka
Color
Yellow, Brown, Colorless, White, gray, Brownish
Colorless, Blue
Streak
White
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For which Rashi?
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Planet
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Element of Planets
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Energy
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Finger
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Ring Metal
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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
Not Available
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Durability
Not Available
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Specific Gravity
2.97-3.03
2.90-3.40
Fracture
Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
{001} Poor
Not Available
Chemical Composition
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Luster
Vitreous, Greasy
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Pleochroism
Weak: pale yellow yellow
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Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
Refractive Index
1.627-1.639
1.614-1.666
Optic Character
Biaxial/+
Not Available
Crystal System
Orthorhombic
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Birefringence
0.006
0.014-0.040
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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Danburite Vs Achroite Fracture
Fracture is an important parameter when you compare Danburite and Achroite Physical Properties. It is necessary to understand the significance of these properties, before you compare Danburite Vs Achroite 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 Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal and Brittle. Achroite fracture is Uneven, ConchoidalWalter Schumann and Gemstones of the world (2001).
Danburite Vs Achroite Luster
A primary knowledge about Danburite vs Achroite 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 Vitreous and Greasy luster.