Astrophyllite Vs Dumortierite
Origin
Canada, Russia
Southern and central Africa
Color
Brown, Yellow, Greenish, Brownish, Red
Blue, Violet, Brown, White, Greenish, pink
Streak
Brown, White
White
For which Rashi?
-
Leo, Sagittarius
Element of Planets
-
Water
Specific Gravity
3.2-3.4
3.26-3.41
Fracture
Uneven
Fibrous, ConchoidalWalter Schumann
Cleavage
Perfect on [001] imperfect on [100]
Distinct on {100}, poor on {110}; parting on {001}
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
AlAl6O3BSi3O18
Luster
Greasy, Pearly
Vitreous
Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Transparency
Translucent
Translucent, Translucent to opaque
Refractive Index
1.678-1.758
1.669-1.723
Crystal System
Triclinic
Orthorhombic
Birefringence
0.050
0.011-0.037
Clarity
Translucent
Translucent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Psychology
Self-Reflection
Patience
Healing
Spiritual healing
Emotional healing
Qualities Associated
Self-Reflection
Patience
Astrophyllite Vs Dumortierite Fracture
Fracture is an important parameter when you compare Astrophyllite and Dumortierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Astrophyllite Vs Dumortierite 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. Dumortierite fracture is Fibrous and ConchoidalWalter Schumann.
Astrophyllite Vs Dumortierite Luster
A primary knowledge about Astrophyllite vs Dumortierite 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. Dumortierite, on other hand, exhibits Vitreous luster.