Zoisite Vs Sugilite
Origin
Pakistan, Tanzania
Canada, Southern and central Africa, Italy, Australia, India
Color
Brown, gray, Green, Blue, rose, Red
Violet, Brownish, Yellow, Reddish, Pale pink
Streak
White, Colorless
White
Planet
-
Mercury, Jupiter
Element of Planets
-
Water
Specific Gravity
3.20-3.50
2.69-2.79
Fracture
Uneven, Conchoidal, Even
Conchoidal
Cleavage
Perfect {010} imperfect {100}
Poor on {0001}
Mohs Hardness
6-7
5.5-6.5
Chemical Composition
Ca2Al3(SiO4)3(OH)
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) 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
Weak
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Translucent
Refractive Index
1.685-1.707
1.607-1.612
Crystal System
Orthorhombic
Hexagonal
Birefringence
0.006-0.018
0.003
Clarity
Transparent
Translucent
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Excellent
Reproductive
Supports reproductive health
-
Psychology
Transformation
Spirituality
Healing
Emotional healing
Emotional healing
Qualities Associated
-
Spiritual Protection
Zoisite Vs Sugilite Fracture
Fracture is an important parameter when you compare Zoisite and Sugilite Physical Properties. It is necessary to understand the significance of these properties, before you compare Zoisite Vs Sugilite 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. Sugilite fracture is Conchoidal.
Zoisite Vs Sugilite Luster
A primary knowledge about Zoisite vs Sugilite 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. Sugilite, on other hand, exhibits Vitreous luster.