Origin
Canada, Russia
USA
Color
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
Green, Colorless, Greenish, White
Streak
Brown, White, Brown, White
Greenish, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
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Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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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
Not Available
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Durability
Not Available
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Specific Gravity
3.2-3.4
3.1-3.2
Fracture
Uneven, Brittle, Metallic
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
Perfect on [001] imperfect on [100]
Vitreous, pearly on cleavage
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony 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
Greasy, Pearly
Vitreous, Pearly
Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
NilArthur Thomas
Dispersion
Not Available
Not Available
Transparency
Translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.678-1.758
1.653-1.693
Optic Character
Not Available
Not Available
Crystal System
Triclinic
monoclinic
Birefringence
0.050
0.038-0.044
Clarity
Translucent
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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Astrophyllite Vs Ludlamite Fracture
Fracture is an important parameter when you compare Astrophyllite and Ludlamite Physical Properties. It is necessary to understand the significance of these properties, before you compare Astrophyllite 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 Astrophyllite is Brittle, Metallic and Uneven. Ludlamite fracture is Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas.
Astrophyllite Vs Ludlamite Luster
A primary knowledge about Astrophyllite 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. Astrophyllite exhibits Greasy and Pearly luster. Ludlamite, on other hand, exhibits Pearly and Vitreous luster.