Origin
Southern and central Africa
Brazil, USA, Canada, Madagascar, Sri Lanka, India, Burma
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Blue, Violet, Yellow, Grey
For which Rashi?
-
Libra, Sagittarius, Taurus
Element of Planets
-
Water
Specific Gravity
3.03-3.18
2.6-2.7
Fracture
Uneven, Irregular, Conchoidal
-
Cleavage
{???} Indistinct
3,1
Mohs Hardness
7-7.5
7-7.5
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Mg2Al4Si5O18
Pleochroism
Very strong: pale yellow colorless
-
Transparency
Transparent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.614-1.666
1.52-1.56
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Orthorhombic
Birefringence
0.014-0.032
-9999
Clarity
Transparent
Transparent to translucent
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Digestive
-
Supports digestive health
Psychology
Self-acceptance
Intuition
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-Exploration
Intuition
Dravite Vs Iolite Fracture
Fracture is an important parameter when you compare Dravite and Iolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dravite Vs Iolite 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 Dravite is Uneven, Irregular and Conchoidal.
Dravite Vs Iolite Luster
A primary knowledge about Dravite vs Iolite 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. Dravite exhibits Vitreous luster. Iolite, on other hand, exhibits Vitreous luster.