Tanzanite Vs Lazulite
Origin
Tanzania
Brazil, Southern and central Africa
Color
Blue
Blue, Green, Black
Streak
White, Colorless
White
For which Rashi?
Sagittarius, Pisces, Virgo
Gemini, Sagittarius
Element of Planets
Air, Water, Earth
-
Specific Gravity
3.35
3.04-3.17
Fracture
Uneven, Conchoidal
Uneven
Cleavage
Perfect {010}, imperfect {100}
{001} Indistinct, {???} Indistinct
Chemical Composition
Ca2Al3(SiO4)3(OH)
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Pleochroism
Present
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
Refractive Index
1.685-1.707
1.604-1.646
Crystal System
Orthorhombic
monoclinic
Birefringence
0.006-0.018
0.031-0.036
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
Enhances mental clarity and focus
Balances digestive system and reduces bloating
Respiratory
Excellent
Excellent
Digestive
-
Supports digestive health
Psychology
Intuition
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Psychic Abilities
Tanzanite Vs Lazulite Fracture
Fracture is an important parameter when you compare Tanzanite and Lazulite Physical Properties. It is necessary to understand the significance of these properties, before you compare Tanzanite Vs Lazulite 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 Tanzanite is Uneven and Conchoidal. Lazulite fracture is Uneven.
Tanzanite Vs Lazulite Luster
A primary knowledge about Tanzanite vs Lazulite 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. Tanzanite exhibits Vitreous luster.