Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Southern and central Africa
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
Black, Reddish, gray, Red
Streak
White
Black, Brown, Reddish, Red
For which Rashi?
Libra
Aries, Aquarius, Aries, Aquarius, Aries, Aquarius
Planet
Venus, Mars
Saturn
Element of Planets
Water
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Projective
Not to wear with
Not Available
Not Available
Powers
Love, Courage
Healing
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
5.00-5.30
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
Indistinct
None, may show partings on {0001} and {10 1 1}
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Fe 2O 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Not Available
Pleochroism
typically moderate to strong
O = brownish red; E = yellowish red
Transparency
Transparent, Translucent, Transparent to opaque
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Refractive Index
1.614-1.666
2.690-3.220
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Trigonal
Birefringence
0.014-0.040
0.280
Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli
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
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Tourmaline Vs Hematite Fracture
Fracture is an important parameter when you compare Tourmaline and Hematite Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Hematite 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. Hematite fracture is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven.
Tourmaline Vs Hematite Luster
A primary knowledge about Tourmaline vs Hematite 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.