Oligoclase Vs Zoisite
Origin
Southern and central Africa
Pakistan, Tanzania
Color
Colorless, Brown, Greenish, gray
Brown, gray, Green, Blue, rose, Red
Streak
White
White, Colorless
Specific Gravity
2.62-2.67
3.20-3.50
Fracture
Uneven
Uneven, Conchoidal, Even
Cleavage
From the Greek, oligos and kasein, little cleavage.
Perfect {010} imperfect {100}
Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca2Al3(SiO4)3(OH)
Pleochroism
-
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Transparency
-
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.538-1.550
1.685-1.707
Crystal System
-
Orthorhombic
Birefringence
0.010
0.006-0.018
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
Supports heart health
Reproductive
-
Supports reproductive health
Psychology
Harmony
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Harmony
-
Oligoclase Vs Zoisite Fracture
Fracture is an important parameter when you compare Oligoclase and Zoisite Physical Properties. It is necessary to understand the significance of these properties, before you compare Oligoclase 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 Oligoclase is Uneven. Zoisite fracture is Uneven, Conchoidal and Even.
Oligoclase Vs Zoisite Luster
A primary knowledge about Oligoclase 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. Oligoclase exhibits Vitreous luster. Zoisite, on other hand, exhibits Vitreous luster.