Origin
Afghanistan, China, Southern and central Africa
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Color
Green, Yellow
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
Streak
Not Available
White
For which Rashi?
Not Available
Libra
Planet
Not Available
Venus, Mars
Element of Planets
Not Available
Water
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Projective
Deities
Not Available
Venus
Not to wear with
Not Available
Not Available
Powers
Not Available
Love, Courage
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.58-2.80
2.85-3.35
Fracture
Uneven, Irregular, Management Team (2012)
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Not Available
Indistinct
Chemical Composition
(Mg,Fe2+ ) 3Si 2O 5(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.
Luster
Waxy, Silky, Resinous, Greasy
Vitreous
Pleochroism
Not Available
typically moderate to strong
Transparency
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Transparent, Translucent, Transparent to opaque
Refractive Index
1.530-1.575
1.614-1.666
Optic Character
Not Available
Not Available
Crystal System
Not Available
Trigonal
Birefringence
Not Available
0.014-0.040
Clarity
TranslucentHerve Nicolas Lazzarelli
Transparent
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Bowenite Vs Tourmaline Fracture
Fracture is an important parameter when you compare Bowenite and Tourmaline Physical Properties. It is necessary to understand the significance of these properties, before you compare Bowenite 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 Bowenite is Irregular, Management Team (2012) and Uneven. Tourmaline fracture is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Bowenite Vs Tourmaline Luster
A primary knowledge about Bowenite 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. Bowenite exhibits Greasy, Resinous, Silky and Waxy luster. Tourmaline, on other hand, exhibits Vitreous luster.