Allanite Vs Neptunite
Origin
Not Available, Southern and central Africa
USA
Color
Brown, Black
Black, Red, Brown
Streak
Not Available
Brown, Red
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.40-4.20
3.19-3.23
Fracture
Not Available
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Cleavage
Not Available
{110} good
Mohs Hardness
Not Available
5-6
Chemical Composition
Not Available
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Not Available
Vitreous
Pleochroism
Not Available
x=yellow-orange
Dispersion
Not Available
Not Available
Transparency
Not Available
Translucent
Refractive Index
1
1.692-1.734
Optic Character
Not Available
Not Available
Crystal System
Not Available
monoclinic
Birefringence
0.013-0.036
0.0294-0.0452
Clarity
Not Available
Translucent
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Allanite Vs Neptunite Fracture
Fracture is an important parameter when you compare Allanite and Neptunite Physical Properties. It is necessary to understand the significance of these properties, before you compare Allanite Vs Neptunite 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. Neptunite fracture is Brittle, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001).
Allanite Vs Neptunite Luster
A primary knowledge about Allanite vs Neptunite 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. Neptunite, on other hand, exhibits Vitreous luster.