Zoisite Vs Gedrite
Origin
Pakistan, Tanzania
Southern and central Africa
Color
Brown, gray, Green, Blue, rose, Red
Brown, Green, gray, White
Streak
White, Colorless
gray, White
Specific Gravity
3.20-3.50
3.15-3.259
Fracture
Uneven, Conchoidal, Even
-
Cleavage
Perfect {010} imperfect {100}
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Chemical Composition
Ca2Al3(SiO4)3(OH)
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Weak to moderate
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Transparent
Refractive Index
1.685-1.707
1.625-1.718
Crystal System
Orthorhombic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
0.006-0.018
-9999
Clarity
Transparent
Transparent
Cardiovascular
Supports heart health
-
Reproductive
Supports reproductive health
-
Psychology
Transformation
Focus
Healing
Emotional healing
-
Qualities Associated
-
Protection
Zoisite Vs Gedrite Fracture
Fracture is an important parameter when you compare Zoisite and Gedrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Zoisite Vs Gedrite 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.
Zoisite Vs Gedrite Luster
A primary knowledge about Zoisite vs Gedrite 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. Gedrite, on other hand, exhibits Vitreous luster.