Origin
Brazil, Madagascar, Russia, USA, Mexico, Pakistan, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Color
Yellow, Blue, Green, Red, White, Colorless, Blue, Red, Green, Yellow, pink, Brown
Green, Colorless, gray, Yellow, White
For which Rashi?
Sagittarius
Libra
Element of Planets
Not Available
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Receptive
Not to wear with
Not Available
Not Available
Powers
Healing, Love, Money
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.49-3.57
2.80-2.95
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
[001] Perfect
Distinct on [001]
Chemical Composition
Al2SiO4(F,OH)2
Ca2Al2Si3O12(OH)
Pleochroism
Weak
AbsentWalter Schumann
Transparency
Transparent
Translucent
Refractive Index
1.606-1.644
1.611-1.673
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.008-0.011
0.021-0.033
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TranslucentHerve Nicolas Lazzarelli
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
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Topaz Vs Prehnite Fracture
Fracture is an important parameter when you compare Topaz and Prehnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Topaz Vs Prehnite 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. Prehnite fracture is Brittle, Gemstones of the world (2001) More from other references, Metallic, Uneven, UnevenWalter Schumann, White and Yellow.
Topaz Vs Prehnite Luster
A primary knowledge about Topaz vs Prehnite 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. Prehnite, on other hand, exhibits Vitreous luster.