Foitite Vs Astrophyllite
Origin
Not Available, Southern and central Africa
Canada, Russia
Color
Violet, Black
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
Streak
gray, White, gray, White
Brown, White, Brown, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.17
3.2-3.4
Fracture
Handbook of mineralogy (2001)
Uneven, Brittle, Metallic
Cleavage
None
Perfect on [001] imperfect on [100]
Chemical Composition
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Greasy, Pearly
Pleochroism
Strong: pale lavender dark blueAnthony et al
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Dispersion
Not Available
Not Available
Transparency
TranslucentAnthony et al, Translucent
Translucent
Refractive Index
Not Available
1.678-1.758
Optic Character
Not Available
Not Available
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Triclinic
Birefringence
Not Available
0.050
Clarity
TranslucentAnthony et al
Translucent
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Foitite Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Foitite and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Foitite Vs Astrophyllite 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 Foitite is Handbook of mineralogy (2001). Astrophyllite fracture is Brittle, Metallic and Uneven.
Foitite Vs Astrophyllite Luster
A primary knowledge about Foitite vs Astrophyllite 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. Foitite exhibits Vitreous luster. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.