Dumortierite Vs Anthophyllite
Origin
Southern and central Africa
Southern and central Africa
Color
Blue, Violet, Brown, White, Greenish, pink
Brown, White, Greenish, gray, Green, Brownish
For which Rashi?
Leo, Sagittarius
-
Element of Planets
Water
-
Specific Gravity
3.26-3.41
2.9-3.5
Fracture
Fibrous, ConchoidalWalter Schumann
Conchoidal
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
{110} Perfect, {???} Distinct, {???} Distinct
Mohs Hardness
7-8.5
5.5-6
Chemical Composition
AlAl6O3BSi3O18
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
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
-
Transparency
Translucent, Translucent to opaque
Transparent
Refractive Index
1.669-1.723
1.603-1.690
Optic Character
-
Biaxial/+
Crystal System
Orthorhombic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
0.011-0.037
-9999
Clarity
Translucent
Transparent
Neurological
Enhances mental clarity and focus
Enhances brain function
Cardiovascular
-
Supports heart health
Psychology
Patience
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Patience
Self-discovery
Dumortierite Vs Anthophyllite Fracture
Fracture is an important parameter when you compare Dumortierite and Anthophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Anthophyllite 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. Anthophyllite fracture is Conchoidal.
Dumortierite Vs Anthophyllite Luster
A primary knowledge about Dumortierite vs Anthophyllite 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. Anthophyllite, on other hand, exhibits Vitreous and Pearly luster.