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.
Ethiopia, Afghanistan, China, Australia, Color: light greenish blue, pale yellow or colorless. Hardness: 5.5 6, Refractive index: 1.58 1.61, Density: 3.04 3.11, Chemical composition: LiAl(PO4)F, Crystal structure: triclinic, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, Ethiopia, Afghanistan, China and Australia., Axinite is a collectors stone that is rarely used in jewelry.
Color
Yellow, Brown, Colorless, White, gray, Brownish, Yellow
Brown, Green, White, Colorless, Yellow, Green, Blue, gray, Brown, pink, White, Yellow, gray, Greenish
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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Tenacity
Brittle
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Solubility
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Durability
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Specific Gravity
2.97-3.03
2.98-3.10
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Sub-Conchoidal, Irregular/uneven, Sub-Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{001} Poor
[100] Perfect, [110] Good, [011] Distinct
Chemical Composition
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Greasy
Vitreous, Pearly
Pleochroism
Weak: pale yellow yellow
weak to none
Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
Refractive Index
1.627-1.639
1.578-1.646
Optic Character
Biaxial/+
Biaxial/+
Crystal System
Orthorhombic
Triclinic
Birefringence
0.006
0.020-0.030
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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Danburite Vs Amblygonite Fracture
Fracture is an important parameter when you compare Danburite and Amblygonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Danburite Vs Amblygonite 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. Amblygonite fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009), Gemstones (2009), Irregular/uneven, Sub-Conchoidal, Sub-Conchoidal and Uneven.