Afghanite Vs Tourmaline
Origin
Afghanistan, Italy
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Color
Blue, Colorless
Green, Blue, Yellow, Red, Brown, White, Colorless, pink
Element of Planets
-
Water
Specific Gravity
2.55-2.65
2.85-3.35
Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
Perfect {10 1 0}
Indistinct
Mohs Hardness
5.5-6
7-7.5
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Pleochroism
-
typically moderate to strong
Transparency
Transparent
Transparent, Translucent, Transparent to opaque
Refractive Index
1.523
1.614-1.666
Crystal System
Trigonal
Trigonal
Birefringence
0.006
0.014-0.040
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
Aids in mental clarity and focus
Cardiovascular
Supports heart health
-
Digestive
-
Supports digestive health
Psychology
Harmony
Protection
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Protection
Afghanite Vs Tourmaline Fracture
Fracture is an important parameter when you compare Afghanite and Tourmaline Physical Properties. It is necessary to understand the significance of these properties, before you compare Afghanite 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 Afghanite is Conchoidal. Tourmaline fracture is Uneven and Conchoidal.
Afghanite Vs Tourmaline Luster
A primary knowledge about Afghanite 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. Afghanite exhibits Vitreous luster. Tourmaline, on other hand, exhibits Vitreous luster.