Apophyllite Vs Anhydrite
Origin
India, Canada, Brazil
Mexico
Color
Colorless, Reddish, White, pink, Green, Yellow, Violet, Blue, Brown
Colorless, Blue, Violet, White, Brown, rose, gray
Specific Gravity
2.30-2.50
2.90-2.98
Fracture
Uneven
Conchoidal
Cleavage
Perfect on (001)
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Chemical Composition
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Pearly
Pearly, Greasy
Pleochroism
Dichroic (colorless)
For violet varieties
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.530-1.543
1.570-1.614
Optic Character
Uniaxial/-
-
Crystal System
tetragonal
Orthorhombic
Birefringence
0.000-0.003
0.042-0.044
Clarity
Transparent
Transparent
Neurological
Aids in mental clarity and intuition
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Psychology
Spiritual Connection
Calmness
Healing
Emotional healing
Emotional healing
Qualities Associated
Connection to Spiritual Guides
Acceptance
Apophyllite Vs Anhydrite Fracture
Fracture is an important parameter when you compare Apophyllite and Anhydrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Apophyllite 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 Apophyllite is Uneven. Anhydrite fracture is Conchoidal.
Apophyllite Vs Anhydrite Luster
A primary knowledge about Apophyllite 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. Apophyllite exhibits Vitreous and Pearly luster. Anhydrite, on other hand, exhibits Pearly and Greasy luster.