Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
-
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, pink
Green, Yellow, Brown, White, Colorless, Blue, Brownish, Black
Element of Planets
Water
-
Specific Gravity
2.85-3.35
2.36
Fracture
Uneven, Conchoidal
Uneven, Subconchoidal, Fibrous
Cleavage
Indistinct
[110] perfect, [101] good, [010] distinct
Mohs Hardness
7-7.5
3.5-4
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Resinous, Pearly
Pleochroism
typically moderate to strong
Weak
Transparency
Transparent, Translucent, Transparent to opaque
-
Refractive Index
1.614-1.666
1.518-1.561
Crystal System
Trigonal
Orthorhombic
Birefringence
0.014-0.040
0.025
Neurological
Aids in mental clarity and focus
-
Cardiovascular
-
Supports heart health
Digestive
Supports digestive health
-
Psychology
Protection
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Clarity
Tourmaline Vs Wavellite Fracture
Fracture is an important parameter when you compare Tourmaline and Wavellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Wavellite 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. Wavellite fracture is Uneven, Subconchoidal and Fibrous.
Tourmaline Vs Wavellite Luster
A primary knowledge about Tourmaline vs Wavellite 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. Wavellite, on other hand, exhibits Vitreous, Resinous and Pearly luster.