Origin
Canada, Southern and central Africa, Italy, Australia, India
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Color
Violet, Brownish, Yellow, Reddish, Pale pink
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
For which Rashi?
Virgo
Libra
Planet
Mercury, Jupiter
Venus, Mars
Element of Planets
Water
Water
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Projective
Not to wear with
Not Available
Not Available
Powers
Not Available
Love, Courage
Planetary
All
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.69-2.79
2.85-3.35
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Poor on {0001}
Indistinct
Mohs Hardness
5.5-6.5
7-7.5
Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Pleochroism
Weak
typically moderate to strong
Transparency
Translucent
Transparent, Translucent, Transparent to opaque
Refractive Index
1.607-1.612
1.614-1.666
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Trigonal
Birefringence
0.003
0.014-0.040
Clarity
Translucent
Transparent
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
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Healing
Not Available
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Qualities Associated
Not Available
Not Available
Sugilite Vs Tourmaline Fracture
Fracture is an important parameter when you compare Sugilite and Tourmaline Physical Properties. It is necessary to understand the significance of these properties, before you compare Sugilite 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 Sugilite is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009). Tourmaline fracture is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Sugilite Vs Tourmaline Luster
A primary knowledge about Sugilite 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. Sugilite exhibits Vitreous luster. Tourmaline, on other hand, exhibits Vitreous luster.