Dravite Vs Opal
Origin
Southern and central Africa
Ethiopia
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Yellow, White, Red, Brown, Blue
For which Rashi?
-
Cancer, Libra, Scorpio
Element of Planets
-
Earth, Air, Water
Powers
-
Astral Projection, Psychicism
Tenacity
-
BrittleWalter Schumann
Solubility
-
hot salt water
Specific Gravity
3.03-3.18
1.98-2.25
Fracture
Uneven, Irregular, Conchoidal
Conchoidal
Cleavage
{???} Indistinct
None
Mohs Hardness
7-7.5
5-6.5
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
SiO2 · nH2O
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Very strong: pale yellow colorless
None
Transparency
Transparent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.614-1.666
1.37-1.52
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Trigonal
Birefringence
0.014-0.032
-9999
Clarity
Transparent
Transparent
Neurological
-
Enhances mental clarity and focus
Psychology
Self-acceptance
Creativity
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-Exploration
Creativity
Dravite Vs Opal Fracture
Fracture is an important parameter when you compare Dravite and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Dravite Vs Opal 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. Opal fracture is Conchoidal.
Dravite Vs Opal Luster
A primary knowledge about Dravite vs Opal 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. Opal, on other hand, exhibits Vitreous and Pearly luster.