Fluorapatite Vs Ludlamite
Origin
Southern and central Africa
USA
Color
Violet, Blue, Yellow, Brown, White, Colorless
Green, Colorless, Greenish, White
Streak
White
Greenish, White
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
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Solubility
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Durability
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Specific Gravity
3.1-3.25
3.1-3.2
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
Indistinct
Vitreous, pearly on cleavage
Chemical Composition
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Resinous
Vitreous, Pearly
Pleochroism
Weak to strong if coloreD
NilArthur Thomas
Dispersion
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Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.631-1.650
1.653-1.693
Optic Character
Not Available
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Crystal System
Hexagonal
monoclinic
Birefringence
Not Available
0.038-0.044
Clarity
Transparent
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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Fluorapatite Vs Ludlamite Fracture
Fracture is an important parameter when you compare Fluorapatite and Ludlamite Physical Properties. It is necessary to understand the significance of these properties, before you compare Fluorapatite Vs Ludlamite 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 Fluorapatite is ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven. Ludlamite fracture is Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas.
Fluorapatite Vs Ludlamite Luster
A primary knowledge about Fluorapatite vs Ludlamite 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. Fluorapatite exhibits Resinous and Vitreous luster. Ludlamite, on other hand, exhibits Pearly and Vitreous luster.