Astrophyllite Vs Zoisite
Origin
Canada, Russia
Pakistan, Tanzania
Color
Brown, Yellow, Greenish, Brownish, Red
Brown, gray, Green, Blue, rose, Red
Streak
Brown, White
White, Colorless
Specific Gravity
3.2-3.4
3.20-3.50
Fracture
Uneven
Uneven, Conchoidal, Even
Cleavage
Perfect on [001] imperfect on [100]
Perfect {010} imperfect {100}
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Ca2Al3(SiO4)3(OH)
Luster
Greasy, Pearly
Vitreous
Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Transparency
Translucent
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.678-1.758
1.685-1.707
Crystal System
Triclinic
Orthorhombic
Birefringence
0.050
0.006-0.018
Clarity
Translucent
Transparent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Excellent
Reproductive
-
Supports reproductive health
Psychology
Self-Reflection
Transformation
Healing
Spiritual healing
Emotional healing
Qualities Associated
Self-Reflection
-
Astrophyllite Vs Zoisite Fracture
Fracture is an important parameter when you compare Astrophyllite and Zoisite Physical Properties. It is necessary to understand the significance of these properties, before you compare Astrophyllite 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 Astrophyllite is Uneven. Zoisite fracture is Uneven, Conchoidal and Even.
Astrophyllite Vs Zoisite Luster
A primary knowledge about Astrophyllite 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. Astrophyllite exhibits Greasy and Pearly luster. Zoisite, on other hand, exhibits Vitreous luster.