Origin
Southern and central Africa
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
Color
Blue, Violet, Brown, White, Greenish, pink
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
For which Rashi?
Leo, Sagittarius
-
Element of Planets
Water
-
Specific Gravity
3.26-3.41
3.26-3.36
Fracture
Fibrous, ConchoidalWalter Schumann
Conchoidal
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Good on {100}
Mohs Hardness
7-8.5
6.5-7
Chemical Composition
AlAl6O3BSi3O18
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Strong
Transparency
Translucent, Translucent to opaque
-
Refractive Index
1.669-1.723
1.656-1.704
Optic Character
-
Biaxial/+
Crystal System
Orthorhombic
Triclinic
Birefringence
0.011-0.037
0.009-0.012
Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Psychology
Patience
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Patience
Balance
Dumortierite Vs Axinite Fracture
Fracture is an important parameter when you compare Dumortierite and Axinite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Axinite 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. Axinite fracture is Conchoidal.
Dumortierite Vs Axinite Luster
A primary knowledge about Dumortierite vs Axinite 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. Axinite, on other hand, exhibits Vitreous luster.