Dumortierite Vs Opal
Origin
Southern and central Africa
Ethiopia
Color
Blue, Violet, Brown, White, Greenish, pink
Yellow, White, Red, Brown, Blue
For which Rashi?
Leo, Sagittarius
Cancer, Libra, Scorpio
Element of Planets
Water
Earth, Air, Water
Powers
Healing
Astral Projection, Psychicism
Tenacity
-
BrittleWalter Schumann
Solubility
-
hot salt water
Specific Gravity
3.26-3.41
1.98-2.25
Fracture
Fibrous, ConchoidalWalter Schumann
Conchoidal
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
None
Mohs Hardness
7-8.5
5-6.5
Chemical Composition
AlAl6O3BSi3O18
SiO2 · nH2O
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
None
Transparency
Translucent, Translucent to opaque
Transparent, Translucent, Transparent to translucent
Refractive Index
1.669-1.723
1.37-1.52
Crystal System
Orthorhombic
Trigonal
Birefringence
0.011-0.037
-9999
Clarity
Translucent
Transparent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Psychology
Patience
Creativity
Healing
Emotional healing
Emotional healing
Qualities Associated
Patience
Creativity
Dumortierite Vs Opal Fracture
Fracture is an important parameter when you compare Dumortierite and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite 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 Dumortierite is Fibrous and ConchoidalWalter Schumann. Opal fracture is Conchoidal.
Dumortierite Vs Opal Luster
A primary knowledge about Dumortierite 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. Dumortierite exhibits Vitreous luster. Opal, on other hand, exhibits Vitreous and Pearly luster.