Povondraite Vs Tourmaline
Origin
Not Available
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Color
Brownish, Black
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
For which Rashi?
Not Available
Libra
Planet
Not Available
Venus, Mars
Element of Planets
Not Available
Water
Energy
Not Available
Projective
Finger
Not Available
Not Available
Ring Metal
Not Available
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Deities
Not Available
Venus
Not to wear with
Not Available
Not Available
Powers
Not Available
Love, Courage
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
Not Available
Solubility
Not Available
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Durability
Not Available
Not Available
Specific Gravity
3.26
2.85-3.35
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Mohs Hardness
Not Available
7-7.5
Chemical Composition
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Pleochroism
Strong: yellow-brown
typically moderate to strong
Transparency
Translucent
Transparent, Translucent, Transparent to opaque
Refractive Index
Not Available
1.614-1.666
Optic Character
Not Available
Not Available
Crystal System
Not Available
Trigonal
Birefringence
Not Available
0.014-0.040
Clarity
Translucent
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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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
Not Available
Povondraite Vs Tourmaline Fracture
Fracture is an important parameter when you compare Povondraite and Tourmaline Physical Properties. It is necessary to understand the significance of these properties, before you compare Povondraite Vs Tourmaline 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 Povondraite is Uneven, Uneven, ConchoidalAnthony et al and Handbook of mineralogy (2001). Tourmaline fracture is Uneven, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009).
Povondraite Vs Tourmaline Luster
A primary knowledge about Povondraite vs Tourmaline 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. Povondraite exhibits Resinous luster. Tourmaline, on other hand, exhibits Vitreous luster.
