Dravite Vs Zoisite
Origin
Southern and central Africa
Pakistan, Tanzania
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Brown, gray, Green, Blue, rose, Red
Streak
Colorless
White, Colorless
Specific Gravity
3.03-3.18
3.20-3.50
Fracture
Uneven, Irregular, Conchoidal
Uneven, Conchoidal, Even
Cleavage
{???} Indistinct
Perfect {010} imperfect {100}
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Ca2Al3(SiO4)3(OH)
Pleochroism
Very strong: pale yellow colorless
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
1.614-1.666
1.685-1.707
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Orthorhombic
Birefringence
0.014-0.032
0.006-0.018
Clarity
Transparent
Transparent
Cardiovascular
-
Supports heart health
Reproductive
-
Supports reproductive health
Psychology
Self-acceptance
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-Exploration
-
Dravite Vs Zoisite Fracture
Fracture is an important parameter when you compare Dravite and Zoisite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dravite 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 Dravite is Uneven, Irregular and Conchoidal. Zoisite fracture is Uneven, Conchoidal and Even.
Dravite Vs Zoisite Luster
A primary knowledge about Dravite 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. Dravite exhibits Vitreous luster. Zoisite, on other hand, exhibits Vitreous luster.