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