Dumortierite Vs Rubellite
Origin
Southern and central Africa
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
Color
Blue, Violet, Brown, White, Greenish, pink
White, Colorless, Blue, Red, Green, Yellow, Violet
For which Rashi?
Leo, Sagittarius
-
Element of Planets
Water
-
Specific Gravity
3.26-3.41
3.01-3.06
Fracture
Fibrous, ConchoidalWalter Schumann
Conchoidal
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Indiscernible
Mohs Hardness
7-8.5
7-7.5
Chemical Composition
AlAl6O3BSi3O18
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Transparency
Translucent, Translucent to opaque
Transparent, Translucent
Refractive Index
1.669-1.723
1.614-1.666
Crystal System
Orthorhombic
-
Birefringence
0.011-0.037
0.014-0.040
Clarity
Translucent
Transparent
Neurological
Enhances mental clarity and focus
-
Respiratory
Good
Excellent
Psychology
Patience
Passion
Healing
Emotional healing
Emotional healing
Qualities Associated
Patience
Passion
Dumortierite Vs Rubellite Fracture
Fracture is an important parameter when you compare Dumortierite and Rubellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Rubellite 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. Rubellite fracture is Conchoidal.
Dumortierite Vs Rubellite Luster
A primary knowledge about Dumortierite vs Rubellite 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.