Lazulite Vs Powellite
Origin
Brazil, Southern and central Africa
India
Color
Blue, Green, Black
Yellow, Greenish, Blue, Brown, Green, gray
For which Rashi?
Gemini, Sagittarius
-
Specific Gravity
3.04-3.17
4.23
Fracture
Uneven
Conchoidal
Cleavage
{001} Indistinct, {???} Indistinct
{111} Distinct
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
-
Greasy, Subadamantine
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
In deeply colored specimens: blue greenAnthony et al
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.604-1.646
1.974-1.984
Crystal System
monoclinic
-
Birefringence
0.031-0.036
-9999
Clarity
Transparent
Transparent
Neurological
Balances digestive system and reduces bloating
-
Respiratory
Excellent
Good
Digestive
Supports digestive health
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
Vitality
Lazulite Vs Powellite Fracture
Fracture is an important parameter when you compare Lazulite and Powellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Lazulite Vs Powellite 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 Lazulite is Uneven. Powellite fracture is Conchoidal.
Lazulite Vs Powellite Luster
A primary knowledge about Lazulite vs Powellite 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. Powellite, on other hand, exhibits Greasy and Subadamantine luster.