Tourmaline Vs Petoskey Stone
Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Canada
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
Brown
Streak
White
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For which Rashi?
Libra
Sagittarius
Planet
Venus, Mars
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Element of Planets
Water
Water, Earth
Energy
Projective
Receptive
Finger
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Ring Metal
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Not to wear with
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Powers
Love, Courage
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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
2.85-3.35
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Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
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Cleavage
Indistinct
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Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
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Luster
Vitreous
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Pleochroism
typically moderate to strong
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Transparency
Transparent, Translucent, Transparent to opaque
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Refractive Index
1.614-1.666
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Optic Character
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Crystal System
Trigonal
Trigonal
Birefringence
0.014-0.040
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Clarity
Transparent
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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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Tourmaline Vs Petoskey Stone Fracture
Fracture is an important parameter when you compare Tourmaline and Petoskey Stone Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Petoskey Stone 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 Tourmaline is Uneven, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009).
Tourmaline Vs Petoskey Stone Luster
A primary knowledge about Tourmaline vs Petoskey Stone 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. Tourmaline exhibits Vitreous luster.
