Zoisite Vs Purpurite
Origin
Pakistan, Tanzania
Southern and central Africa
Color
Brown, gray, Green, Blue, rose, Red
Violet, Brownish, Black, pink, Red, Reddish
Streak
White, Colorless
Red
Specific Gravity
3.20-3.50
3.2-3.4
Fracture
Uneven, Conchoidal, Even
Uneven
Cleavage
Perfect {010} imperfect {100}
[100] [001] perfect
Chemical Composition
Ca2Al3(SiO4)3(OH)
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
StrongArthur Thomas
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
TranslucentWalter Schumann
Refractive Index
1.685-1.707
1.85-1.92
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.006-0.018
0.070
Clarity
Transparent
TranslucentWalter Schumann
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Reproductive
Supports reproductive health
-
Psychology
Transformation
-
Healing
Emotional healing
Emotional healing
Qualities Associated
-
Spiritual Awareness
Zoisite Vs Purpurite Fracture
Fracture is an important parameter when you compare Zoisite and Purpurite Physical Properties. It is necessary to understand the significance of these properties, before you compare Zoisite Vs Purpurite 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. Purpurite fracture is Uneven.
Zoisite Vs Purpurite Luster
A primary knowledge about Zoisite vs Purpurite 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.