Origin
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
Brazil, Southern and central Africa, Sri Lanka
Color
Colorless, gray, Yellow, White
Red, gray
Streak
Colorless
Red, Black
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
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
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Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
insoluble
Insoluble in acids
Durability
Not Available
Not Available
Specific Gravity
2.40
4.20-4.30
Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
6-6.5
6-6.5
Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Pearly
Adamantine
Pleochroism
AbsentWalter Schumann
Weak to distinct brownish red-green-yellow
Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
Refractive Index
1.502-1.523
2.609-2.903
Optic Character
Not Available
Not Available
Crystal System
monoclinic
tetragonal
Birefringence
0.012-0.016
0.296
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
Not Available
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Cardiovascular
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Respiratory
Not Available
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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
Not Available
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Qualities Associated
Not Available
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Petalite Vs Rutile Fracture
Fracture is an important parameter when you compare Petalite and Rutile Physical Properties. It is necessary to understand the significance of these properties, before you compare Petalite Vs Rutile 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 Petalite is Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle and Conchoidal. Rutile fracture is Uneven, ConchoidalArthur Thomas and Gemstones (2009).
Petalite Vs Rutile Luster
A primary knowledge about Petalite vs Rutile 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. Petalite exhibits Vitreous and Pearly luster. Rutile, on other hand, exhibits Adamantine luster.
