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.
USA
Color
Yellow, Brown, Colorless, White, gray, Brownish, Yellow
Black, Red, Brown
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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Solubility
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Durability
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Specific Gravity
2.97-3.03
3.19-3.23
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Cleavage
{001} Poor
{110} good
Chemical Composition
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Greasy
Vitreous
Pleochroism
Weak: pale yellow yellow
x=yellow-orange
Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.627-1.639
1.692-1.734
Optic Character
Biaxial/+
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Crystal System
Orthorhombic
monoclinic
Birefringence
0.006
0.0294-0.0452
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 Neptunite Fracture
Fracture is an important parameter when you compare Danburite and Neptunite Physical Properties. It is necessary to understand the significance of these properties, before you compare Danburite Vs Neptunite 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, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal and Brittle. Neptunite fracture is Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Brittle.
Danburite Vs Neptunite Luster
A primary knowledge about Danburite vs Neptunite 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. Neptunite, on other hand, exhibits Vitreous luster.
