Dravite Vs Pyrite
Origin
Southern and central Africa
Brazil
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Yellow
Streak
Colorless
Greenish, Black, Brownish
Solubility
-
insoluble in water
Specific Gravity
3.03-3.18
5.00-5.20
Fracture
Uneven, Irregular, Conchoidal
Uneven, Conchoidal, ConchoidalWalter Schumann
Cleavage
{???} Indistinct
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
7-7.5
6-6.5
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
Very strong: pale yellow colorless
-
Transparency
Transparent
OpaqueHerve Nicolas Lazzarelli
Refractive Index
1.614-1.666
-9999
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Isometric
Birefringence
0.014-0.032
-9999
Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli
Cardiovascular
-
Supports heart health
Psychology
Self-acceptance
Abundance
Healing
Emotional healing
Physical healing
Qualities Associated
Self-Exploration
Abundance
Dravite Vs Pyrite Fracture
Fracture is an important parameter when you compare Dravite and Pyrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dravite Vs Pyrite 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 Dravite is Uneven, Irregular and Conchoidal. Pyrite fracture is Uneven, Conchoidal and ConchoidalWalter Schumann.
Dravite Vs Pyrite Luster
A primary knowledge about Dravite vs Pyrite 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. Dravite exhibits Vitreous luster.