Zoisite Vs Verdelite
Origin
Pakistan, Tanzania
Afghanistan, Brazil, Mozambique, Sri Lanka, USA
Color
Brown, gray, Green, Blue, rose, Red
Green, Brown
Streak
White, Colorless
-
Specific Gravity
3.20-3.50
2.90-3.40
Fracture
Uneven, Conchoidal, Even
Conchoidal
Cleavage
Perfect {010} imperfect {100}
Indiscernible
Chemical Composition
Ca2Al3(SiO4)3(OH)
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Strong: dark green yellow
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Transparent, Translucent
Refractive Index
1.685-1.707
1.614-1.666
Crystal System
Orthorhombic
-
Birefringence
0.006-0.018
0.014-0.040
Clarity
Transparent
Transparent
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Good
Reproductive
Supports reproductive health
-
Psychology
Transformation
Compassion
Healing
Emotional healing
Emotional healing
Qualities Associated
-
Compassion
Zoisite Vs Verdelite Fracture
Fracture is an important parameter when you compare Zoisite and Verdelite Physical Properties. It is necessary to understand the significance of these properties, before you compare Zoisite Vs Verdelite 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. Verdelite fracture is Conchoidal.
Zoisite Vs Verdelite Luster
A primary knowledge about Zoisite vs Verdelite 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.