Dumortierite Vs Anhydrite
Origin
Southern and central Africa
Mexico
Color
Blue, Violet, Brown, White, Greenish, pink
Colorless, Blue, Violet, White, Brown, rose, gray
For which Rashi?
Leo, Sagittarius
-
Element of Planets
Water
-
Specific Gravity
3.26-3.41
2.90-2.98
Fracture
Fibrous, ConchoidalWalter Schumann
Conchoidal
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Chemical Composition
AlAl6O3BSi3O18
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Pearly, Greasy
Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
For violet varieties
Transparency
Translucent, Translucent to opaque
Transparent
Refractive Index
1.669-1.723
1.570-1.614
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.011-0.037
0.042-0.044
Clarity
Translucent
Transparent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Psychology
Patience
Calmness
Healing
Emotional healing
Emotional healing
Qualities Associated
Patience
Acceptance
Dumortierite Vs Anhydrite Fracture
Fracture is an important parameter when you compare Dumortierite and Anhydrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Anhydrite 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. Anhydrite fracture is Conchoidal.
Dumortierite Vs Anhydrite Luster
A primary knowledge about Dumortierite vs Anhydrite 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. Anhydrite, on other hand, exhibits Pearly and Greasy luster.