Astrophyllite Vs Scheelite
Origin
Canada, Russia
Switzerland, Australia, Brazil
Color
Brown, Yellow, Greenish, Brownish, Red
Yellow, Colorless, White, Brownish, Reddish
Streak
Brown, White
White
Specific Gravity
3.2-3.4
5.9-6.3
Fracture
Uneven
Conchoidal, Uneven
Cleavage
Perfect on [001] imperfect on [100]
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Greasy, Pearly
Vitreous, Adamantine
Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Definite dichoric in yellow (yellow to orange-brown)
Transparency
Translucent
Translucent, Transparent
Refractive Index
1.678-1.758
1.918-1.936
Crystal System
Triclinic
tetragonal
Birefringence
0.050
0.016
Clarity
Translucent
Translucent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Psychology
Self-Reflection
Awareness
Healing
Spiritual healing
Physical healing
Qualities Associated
Self-Reflection
Balance & Clarity
Astrophyllite Vs Scheelite Fracture
Fracture is an important parameter when you compare Astrophyllite and Scheelite Physical Properties. It is necessary to understand the significance of these properties, before you compare Astrophyllite Vs Scheelite 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. Scheelite fracture is Conchoidal and Uneven.
Astrophyllite Vs Scheelite Luster
A primary knowledge about Astrophyllite vs Scheelite 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. Scheelite, on other hand, exhibits Vitreous and Adamantine luster.