Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
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.
Color
Blue, Violet, Colorless, Red, Green, Brown
Yellow, Brown, Colorless, White, gray, Brownish
For which Rashi?
Sagittarius, Scorpio
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Planet
Pluto
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Element of Planets
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Energy
Projective
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Finger
Not Available
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Ring Metal
Not Available
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Deities
Hephaestus
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Not to wear with
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Powers
Money
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Planetary
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Talisman
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Tenacity
Not Available
Brittle
Solubility
none
Not Available
Durability
Not Available
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Specific Gravity
3.64-3.66
2.97-3.03
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
None, but may exhibit slight parting
{001} Poor
Chemical Composition
MgAl2O4
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Absent
Weak: pale yellow yellow
Transparency
Transparent, Translucent, Transparent to translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.73
1.627-1.639
Optic Character
Not Available
Biaxial/+
Crystal System
Isometric
Orthorhombic
Birefringence
Not Available
0.006
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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Spinel Vs Danburite Fracture
Fracture is an important parameter when you compare Spinel and Danburite Physical Properties. It is necessary to understand the significance of these properties, before you compare Spinel 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 Spinel is Conchoidal, Uneven, ConchoidalArthur Thomas and Gemstones (2009). Danburite fracture is Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal and Brittle.
Spinel Vs Danburite Luster
A primary knowledge about Spinel 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. Spinel exhibits Vitreous luster. Danburite, on other hand, exhibits Vitreous and Greasy luster.
