Beryllonite Vs Dumortierite
Origin
USA
Southern and central Africa
Color
Colorless, White, Yellow
Blue, Violet, Brown, White, Greenish, pink
For which Rashi?
-
Leo, Sagittarius
Element of Planets
-
Water
Specific Gravity
2.79-2.87
3.26-3.41
Fracture
Conchoidal
Fibrous, ConchoidalWalter Schumann
Cleavage
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
Distinct on {100}, poor on {110}; parting on {001}
Mohs Hardness
5.5-6
7-8.5
Chemical Composition
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
AlAl6O3BSi3O18
Luster
Vitreous, Adamantine, Pearly
Vitreous
Pleochroism
-
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Transparency
-
Translucent, Translucent to opaque
Refractive Index
1.552-1.562
1.669-1.723
Crystal System
monoclinic
Orthorhombic
Birefringence
0.009
0.011-0.037
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Neurological
-
Enhances mental clarity and focus
Respiratory
Excellent
Good
Psychology
Creativity
Patience
Healing
Emotional healing
Emotional healing
Qualities Associated
Harmony
Patience
Beryllonite Vs Dumortierite Fracture
Fracture is an important parameter when you compare Beryllonite and Dumortierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Beryllonite 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 Beryllonite is Conchoidal. Dumortierite fracture is Fibrous and ConchoidalWalter Schumann.
Beryllonite Vs Dumortierite Luster
A primary knowledge about Beryllonite 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. Beryllonite exhibits Vitreous, Adamantine and Pearly luster. Dumortierite, on other hand, exhibits Vitreous luster.