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.
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Color
Yellow, Brown, Colorless, White, gray, Brownish, Yellow
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
White
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For which Rashi?
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Libra
Planet
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Venus, Mars
Element of Planets
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Earth
Finger
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Ring Metal
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Energy
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Projective
Deities
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Venus, Mars
Not to wear with
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Powers
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Love, Courage
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
2.85-3.35
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009)
Chemical Composition
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tourmaline is a series of several different minerals with unique chemical formulas.
Luster
Vitreous, Greasy
Vitreous
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/+
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Crystal System
Orthorhombic
Hexagonal
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 Chrome Tourmaline Fracture
Fracture is an important parameter when you compare Danburite and Chrome Tourmaline Physical Properties. It is necessary to understand the significance of these properties, before you compare Danburite Vs Chrome Tourmaline 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. Chrome Tourmaline fracture is ConchoidalArthur Thomas and Gemstones (2009).
Danburite Vs Chrome Tourmaline Luster
A primary knowledge about Danburite vs Chrome Tourmaline 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 Greasy and Vitreous luster. Chrome Tourmaline, on other hand, exhibits Vitreous luster.