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