Anthophyllite Vs Anhydrite
Origin
Southern and central Africa
Mexico
Color
Brown, White, Greenish, gray, Green, Brownish
Colorless, Blue, Violet, White, Brown, rose, gray
Specific Gravity
2.9-3.5
2.90-2.98
Fracture
Conchoidal
Conchoidal
Cleavage
{110} Perfect, {???} Distinct, {???} Distinct
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Chemical Composition
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Pearly
Pearly, Greasy
Pleochroism
-
For violet varieties
Transparency
Transparent
Transparent
Refractive Index
1.603-1.690
1.570-1.614
Optic Character
Biaxial/+
-
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Orthorhombic
Birefringence
-9999
0.042-0.044
Clarity
Transparent
Transparent
Neurological
Enhances brain function
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Psychology
Peace
Calmness
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-discovery
Acceptance
Anthophyllite Vs Anhydrite Fracture
Fracture is an important parameter when you compare Anthophyllite and Anhydrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Anthophyllite 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 Anthophyllite is Conchoidal. Anhydrite fracture is Conchoidal.
Anthophyllite Vs Anhydrite Luster
A primary knowledge about Anthophyllite 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. Anthophyllite exhibits Vitreous and Pearly luster. Anhydrite, on other hand, exhibits Pearly and Greasy luster.