Zoisite Vs Ludlamite
Origin
Pakistan, Tanzania
USA
Color
Brown, gray, Green, Blue, rose, Red
Green, Colorless, Greenish, White
Streak
White, Colorless
Greenish, White
Specific Gravity
3.20-3.50
3.1-3.2
Fracture
Uneven, Conchoidal, Even
-
Cleavage
Perfect {010} imperfect {100}
Vitreous, pearly on cleavage
Chemical Composition
Ca2Al3(SiO4)3(OH)
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Pearly
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
-
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
-
Refractive Index
1.685-1.707
1.653-1.693
Crystal System
Orthorhombic
monoclinic
Birefringence
0.006-0.018
0.038-0.044
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
-
Aids in mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Reproductive
Supports reproductive health
-
Digestive
-
Supports digestive health
Psychology
Transformation
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
-
Emotional Healing
Zoisite Vs Ludlamite Fracture
Fracture is an important parameter when you compare Zoisite and Ludlamite Physical Properties. It is necessary to understand the significance of these properties, before you compare Zoisite Vs Ludlamite 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 Ludlamite Luster
A primary knowledge about Zoisite vs Ludlamite 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. Ludlamite, on other hand, exhibits Vitreous and Pearly luster.