Dravite Vs Augite
Origin
Southern and central Africa
USA, Mexico
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Green, Brown, Greenish, Black
Streak
Colorless
Greenish, gray
Specific Gravity
3.03-3.18
3.19-3.56
Fracture
Uneven, Irregular, Conchoidal
Uneven, Conchoidal
Cleavage
{???} Indistinct
{110} Perfect, {010} Indistinct
Mohs Hardness
7-7.5
5.5-6
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous, Resinous
Pleochroism
Very strong: pale yellow colorless
Pale green
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.614-1.666
1.671-1.774
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Birefringence
0.014-0.032
-9999
Clarity
Transparent
Transparent
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Psychology
Self-acceptance
Courage
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-Exploration
Grounding
Dravite Vs Augite Fracture
Fracture is an important parameter when you compare Dravite and Augite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dravite Vs Augite 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. Augite fracture is Uneven and Conchoidal.
Dravite Vs Augite Luster
A primary knowledge about Dravite vs Augite 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. Augite, on other hand, exhibits Vitreous and Resinous luster.