Origin
Brazil, Madagascar, Russia, USA, Mexico, Pakistan, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia
Canada, Russia
Color
Yellow, Blue, Green, Red, White, Colorless, Blue, Red, Green, Yellow, pink, Brown
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
Streak
White
Brown, White, Brown, White
For which Rashi?
Sagittarius
Not Available
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
Projective
Not Available
Not to wear with
Not Available
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Powers
Healing, Love, Money
Not Available
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.49-3.57
3.2-3.4
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Brittle, Metallic
Cleavage
[001] Perfect
Perfect on [001] imperfect on [100]
Chemical Composition
Al2SiO4(F,OH)2
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Greasy, Pearly
Pleochroism
Weak
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Transparency
Transparent
Translucent
Refractive Index
1.606-1.644
1.678-1.758
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Triclinic
Birefringence
0.008-0.011
0.050
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Neurological
Not Available
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Cardiovascular
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Respiratory
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
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Qualities Associated
Not Available
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Topaz Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Topaz and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Topaz 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 Topaz is Brittle, ConchoidalArthur Thomas, Gemstones (2009), Subconchoidal and Uneven. Astrophyllite fracture is Brittle, Metallic and Uneven.
Topaz Vs Astrophyllite Luster
A primary knowledge about Topaz 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. Topaz exhibits Vitreous luster. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.