Origin
Afghanistan
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
Color
Violet, Blue, White
Yellow, Green, Blue, Blue, Green, White, Yellow, Green, Red, Blue, Green, Colorless, Yellow, Blue, Violet, pink, Brown
For which Rashi?
Sagittarius
Gemini
Element of Planets
Water
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Projective
Deities
Venus
Jupiter/Neptune
Not to wear with
Not Available
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Powers
Protection, Courage
Healing
Planetary
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Talisman
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Tenacity
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.50-3.00
3.16-3.23
Fracture
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Cleavage
3,6
[0001] indistinct, [1010] indistinct
Chemical Composition
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Greasy
Vitreous
Pleochroism
AbsentWalter Schumann
Blue stones – strong
Transparency
Opaque
Gemmological Tables (2004) More from other references
Refractive Index
1.500-1.670
1.628-1.651
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Hexagonal
Birefringence
Not Available
0.002-0.008
Clarity
Gemstones of the world (2001)
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Not Available
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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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Lapis lazuli Vs Apatite Fracture
Fracture is an important parameter when you compare Lapis lazuli and Apatite Physical Properties. It is necessary to understand the significance of these properties, before you compare Lapis lazuli Vs Apatite 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 Lapis lazuli is ConchoidalWalter Schumann, Gemstones of the world (2001) and Uneven-Conchoidal. Apatite fracture is Brittle, Conchoidal, Conchoidal, Conchoidal to uneven, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Lapis lazuli Vs Apatite Luster
A primary knowledge about Lapis lazuli vs Apatite 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. Lapis lazuli exhibits Greasy and Vitreous luster. Apatite, on other hand, exhibits Vitreous luster.