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.
Italy
Color
Yellow, Brown, Colorless, White, gray, Brownish
Green, gray, Brown, Black
Streak
White
Greenish, White
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
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Durability
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Specific Gravity
2.97-3.03
2.58-2.80
Fracture
Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Conchoidal, Brittle, Metallic, Handbook of mineralogy (2001)
Cleavage
{001} Poor
{001} Good
Chemical Composition
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Greasy
Waxy, Silky, Resinous, Greasy
Pleochroism
Weak: pale yellow yellow
pale greenish yellow.
Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.627-1.639
1.530-1.575
Optic Character
Biaxial/+
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Crystal System
Orthorhombic
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
Birefringence
0.006
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Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
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 Antigorite Fracture
Fracture is an important parameter when you compare Danburite and Antigorite Physical Properties. It is necessary to understand the significance of these properties, before you compare Danburite Vs Antigorite 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. Antigorite fracture is Conchoidal, Brittle, Metallic and Handbook of mineralogy (2001).
Danburite Vs Antigorite Luster
A primary knowledge about Danburite vs Antigorite 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. Antigorite, on other hand, exhibits Waxy, Silky, Resinous and Greasy luster.