Zoisite Vs Riebeckite
Origin
Pakistan, Tanzania
-
Color
Brown, gray, Green, Blue, rose, Red
Black, Blue, Yellow, Green
Streak
White, Colorless
Grey, Greenish, Brown
Specific Gravity
3.20-3.50
3.28-3.44
Fracture
Uneven, Conchoidal, Even
Uneven, Splintery
Cleavage
Perfect {010} imperfect {100}
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
6-7
5.0-6.0
Chemical Composition
Ca2Al3(SiO4)3(OH)
Na2Fe2+3Fe3+2Si8O22(OH)2
Luster
Vitreous
Vitreous, Silky
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
X = blue
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
-
Refractive Index
1.685-1.707
1.680-1.698
Crystal System
Orthorhombic
monoclinic
Birefringence
0.006-0.018
0.005-0.008
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Good
Reproductive
Supports reproductive health
-
Psychology
Transformation
Empowerment
Healing
Emotional healing
Emotional healing
Qualities Associated
-
Clear Thinking
Zoisite Vs Riebeckite Fracture
Fracture is an important parameter when you compare Zoisite and Riebeckite Physical Properties. It is necessary to understand the significance of these properties, before you compare Zoisite Vs Riebeckite 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 Zoisite is Uneven, Conchoidal and Even. Riebeckite fracture is Uneven and Splintery.
Zoisite Vs Riebeckite Luster
A primary knowledge about Zoisite vs Riebeckite 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. Zoisite exhibits Vitreous luster. Riebeckite, on other hand, exhibits Vitreous and Silky luster.