Poldervaartite Vs Astrophyllite
Origin
Southern and central Africa
Canada, Russia
Color
Colorless, White
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
Streak
White
Brown, White, Brown, White
For which Rashi?
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Planet
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Element of Planets
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Energy
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Finger
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Ring Metal
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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
2.91
3.2-3.4
Fracture
Handbook of mineralogy (2001)
Uneven, Brittle, Metallic
Cleavage
None
Perfect on [001] imperfect on [100]
Mohs Hardness
Not Available
3
Chemical Composition
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony 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
Weak: colorless light gray bluish grayAnthony et al
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Dispersion
Not Available
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Transparency
Transparent
Translucent
Refractive Index
1.634-1.656
1.678-1.758
Optic Character
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Crystal System
Not Available
Triclinic
Birefringence
Not Available
0.050
Clarity
Transparent
Translucent
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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Poldervaartite Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Poldervaartite and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Poldervaartite 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 Poldervaartite is Handbook of mineralogy (2001). Astrophyllite fracture is Uneven, Brittle and Metallic.
Poldervaartite Vs Astrophyllite Luster
A primary knowledge about Poldervaartite 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. Poldervaartite exhibits Vitreous luster. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.
