Astrophyllite Vs Spinel
Origin
Canada, Russia
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Color
Brown, Yellow, Greenish, Brownish, Red
Blue, Violet, Colorless, Red, Green, Brown
Streak
Brown, White
White
For which Rashi?
-
Sagittarius, Scorpio
Specific Gravity
3.2-3.4
3.64-3.66
Fracture
Uneven
Conchoidal, Uneven
Cleavage
Perfect on [001] imperfect on [100]
None, but may exhibit slight parting
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
MgAl2O4
Luster
Greasy, Pearly
Vitreous
Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Absent
Transparency
Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.678-1.758
1.73
Crystal System
Triclinic
Isometric
Birefringence
0.050
-9999
Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Psychology
Self-Reflection
Revitalization
Healing
Spiritual healing
Emotional healing
Qualities Associated
Self-Reflection
Vitality
Astrophyllite Vs Spinel Fracture
Fracture is an important parameter when you compare Astrophyllite and Spinel Physical Properties. It is necessary to understand the significance of these properties, before you compare Astrophyllite Vs Spinel 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. Spinel fracture is Conchoidal and Uneven.
Astrophyllite Vs Spinel Luster
A primary knowledge about Astrophyllite vs Spinel 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. Spinel, on other hand, exhibits Vitreous luster.