Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Mexico
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
White, Colorless, gray, pink
Streak
White
Colorless, White
For which Rashi?
Libra
Not Available
Planet
Venus, Mars
Not Available
Element of Planets
Water
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Not Available
Deities
Venus
Not Available
Not to wear with
Not Available
Not Available
Powers
Love, Courage
Not Available
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
2.85-3.35
2.71-2.72
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Handbook of mineralogy (2001), Difficult, Fibrous
Cleavage
Indistinct
{???} 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.
Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Silky
Pleochroism
typically moderate to strong
Not Available
Transparency
Transparent, Translucent, Transparent to opaque
Gems, Sixth Edition (2006)
Refractive Index
1.614-1.666
1.581-1.593
Optic Character
Not Available
Not Available
Crystal System
Trigonal
monoclinic
Birefringence
0.014-0.040
0.010
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
Tourmaline Vs Xonotlite Fracture
Fracture is an important parameter when you compare Tourmaline and Xonotlite Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Xonotlite 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. Xonotlite fracture is Difficult, Fibrous and Handbook of mineralogy (2001).
Tourmaline Vs Xonotlite Luster
A primary knowledge about Tourmaline vs Xonotlite 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. Xonotlite, on other hand, exhibits Silky and Vitreous luster.