Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
USA
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, pink
Yellow, Red, Green, Colorless, orange
Streak
White
Yellow, yellowish orange
Element of Planets
Water
-
Specific Gravity
2.85-3.35
5.50-5.90
Fracture
Uneven, Conchoidal
Conchoidal
Cleavage
Indistinct
On {10 1 0}, perfect; parting on {000 1 }
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Subadamantine, Resinous
Pleochroism
typically moderate to strong
Very weak
Transparency
Transparent, Translucent, Transparent to opaque
TransparentRobert C. Kammerling
Refractive Index
1.614-1.666
2.013-2.029
Crystal System
Trigonal
Hexagonal
Birefringence
0.014-0.040
0.016
Clarity
Transparent
TransparentRobert C. Kammerling
Neurological
Aids in mental clarity and focus
-
Digestive
Supports digestive health
-
Psychology
Protection
Passion
Healing
Emotional healing
-
Qualities Associated
Protection
-
Tourmaline Vs Zincite Fracture
Fracture is an important parameter when you compare Tourmaline and Zincite Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Zincite 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 Uneven and Conchoidal. Zincite fracture is Conchoidal.
Tourmaline Vs Zincite Luster
A primary knowledge about Tourmaline vs Zincite 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. Zincite, on other hand, exhibits Subadamantine and Resinous luster.