Origin
Mexico, USA, Canada, Madagascar, Spain, Russia, Sri Lanka, India, Burma, Color: green, greenish yellow, blue, violet, Hardness: 5, Refractive index: 1.60 1.67, Density: 3.17 3.35, Chemical composition: Phosphate composition, Crystal structure: hexagonal, Lustre: vitreous, Origins: Mexico, USA, Canada, Madagascar, Spain, Russia, Sri Lanka, India, brown, green, Yellow, violet, brown, green, Yellow, violet
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Color
Yellow, Green, Blue, Blue, Green, White, Yellow, Green, Red, Blue, Green, Colorless, Yellow, Blue, Violet, pink, Brown
Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray
For which Rashi?
Gemini
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Planet
Mercury
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Element of Planets
Earth
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Finger
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Ring Metal
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Energy
Projective
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Deities
Jupiter/Neptune
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Not to wear with
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Powers
Healing
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Planetary
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Talisman
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Tenacity
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Brittle
Solubility
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Durability
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Specific Gravity
3.16-3.23
2.57-2.66
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Subconchoidal, Conchoidal, Brittle
Cleavage
[0001] indistinct, [1010] indistinct
Fair on {100}, poor on {001} and {010}
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Mg2Al4Si5O18
Luster
Vitreous
Greasy, Vitreous
Pleochroism
Blue stones – strong
X = pale yellow
Transparency
Gemmological Tables (2004) More from other references
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Refractive Index
1.628-1.651
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Optic Character
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Crystal System
Hexagonal
Orthorhombic
Birefringence
0.002-0.008
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Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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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Apatite Vs Cordierite Fracture
Fracture is an important parameter when you compare Apatite and Cordierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Apatite Vs Cordierite 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 Apatite is Brittle, Conchoidal, Conchoidal, Conchoidal to uneven, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Cordierite fracture is Brittle, Conchoidal and Subconchoidal.
Apatite Vs Cordierite Luster
A primary knowledge about Apatite vs Cordierite 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. Apatite exhibits Vitreous luster. Cordierite, on other hand, exhibits Greasy and Vitreous luster.