Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Madagascar, Southern and central Africa
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
White, Yellow, Blue, Green, Green, gray, Yellow
For which Rashi?
Libra
Not Available
Planet
Venus, Mars
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Element of Planets
Water
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Finger
Not Available
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Ring Metal
Not Available
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Energy
Projective
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Deities
Venus
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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
Not Available
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Durability
Not Available
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Specific Gravity
2.85-3.35
2.55-2.63
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gems
Cleavage
Indistinct
{001} Perfect, {010} Good
Mohs Hardness
7-7.5
6-6.5
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
KAlSi 3O 8Arthur Thomas , Gemstones (2009)
Pleochroism
typically moderate to strong
WeakMichael OâDonoghue
Transparency
Transparent, Translucent, Transparent to opaque
Translucent
Refractive Index
1.614-1.666
1.514-1.539
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1
Birefringence
0.014-0.040
0.008-0.010
Clarity
Transparent
Translucent
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
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Qualities Associated
Not Available
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Tourmaline Vs Microcline Fracture
Fracture is an important parameter when you compare Tourmaline and Microcline Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Microcline 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 Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Microcline fracture is Gems, Uneven and Uneven.
Tourmaline Vs Microcline Luster
A primary knowledge about Tourmaline vs Microcline 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. Microcline, on other hand, exhibits Vitreous luster.