Origin
Southern and central Africa
Brazil, USA, Canada, Madagascar, Sri Lanka, India, Burma
Color
Blue, Violet, Brown, White, Greenish, pink
Blue, Violet, Yellow, Grey
For which Rashi?
Leo, Sagittarius
Libra, Sagittarius, Taurus
Element of Planets
Water
Water
Specific Gravity
3.26-3.41
2.6-2.7
Fracture
Fibrous, ConchoidalWalter Schumann
-
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
3,1
Mohs Hardness
7-8.5
7-7.5
Chemical Composition
AlAl6O3BSi3O18
Mg2Al4Si5O18
Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
-
Transparency
Translucent, Translucent to opaque
Transparent, Translucent, Transparent to translucent
Refractive Index
1.669-1.723
1.52-1.56
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.011-0.037
-9999
Clarity
Translucent
Transparent to translucent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Good
Excellent
Digestive
-
Supports digestive health
Psychology
Patience
Intuition
Healing
Emotional healing
Emotional healing
Qualities Associated
Patience
Intuition
Dumortierite Vs Iolite Fracture
Fracture is an important parameter when you compare Dumortierite and Iolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Iolite 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.
Dumortierite Vs Iolite Luster
A primary knowledge about Dumortierite vs Iolite 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. Iolite, on other hand, exhibits Vitreous luster.