Afghanite Vs Bertrandite
Origin
Afghanistan, Italy
Not Available, Southern and central Africa
Color
Blue, Blue, Colorless, Blue, Colorless
Colorless, Colorless, Yellow
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
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
2.59-2.60
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Brittle, Metallic, Brittle, Metallic
Cleavage
Perfect {10 1 0}
{001} Perfect, {110} Distinct, {101} Distinct
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Pleochroism
Not Available
none.
Dispersion
Not Available
Not Available
Transparency
Transparent, Gemstones (2009)
TransparentAnthony et al, Handbook of mineralogy (2001)
Refractive Index
1.523
1.583-1.614
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Birefringence
0.006
Not Available
Clarity
Transparent
TransparentAnthony et al
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
Afghanite Vs Bertrandite Fracture
Fracture is an important parameter when you compare Afghanite and Bertrandite Physical Properties. It is necessary to understand the significance of these properties, before you compare Afghanite Vs Bertrandite 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 Afghanite is Brittle, Brittle, Conchoidal, Conchoidal, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009). Bertrandite fracture is Brittle, Brittle, Metallic and Metallic.
Afghanite Vs Bertrandite Luster
A primary knowledge about Afghanite vs Bertrandite 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. Afghanite exhibits Vitreous luster. Bertrandite, on other hand, exhibits Vitreous luster.