Anhydrite Vs Zoisite
Origin
Mexico
Pakistan, Tanzania
Color
Colorless, Blue, Violet, White, Brown, rose, gray
Brown, gray, Green, Blue, rose, Red
Streak
White
White, Colorless
Specific Gravity
2.90-2.98
3.20-3.50
Fracture
Conchoidal
Uneven, Conchoidal, Even
Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Perfect {010} imperfect {100}
Chemical Composition
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca2Al3(SiO4)3(OH)
Luster
Pearly, Greasy
Vitreous
Pleochroism
For violet varieties
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Transparency
Transparent
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.570-1.614
1.685-1.707
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.042-0.044
0.006-0.018
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Psychology
Calmness
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Acceptance
-
Anhydrite Vs Zoisite Fracture
Fracture is an important parameter when you compare Anhydrite and Zoisite Physical Properties. It is necessary to understand the significance of these properties, before you compare Anhydrite Vs Zoisite 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 Anhydrite is Conchoidal. Zoisite fracture is Uneven, Conchoidal and Even.
Anhydrite Vs Zoisite Luster
A primary knowledge about Anhydrite vs Zoisite 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. Anhydrite exhibits Pearly and Greasy luster. Zoisite, on other hand, exhibits Vitreous luster.