Lazulite Vs Jacobsite
Origin
Brazil, Southern and central Africa
Southern and central Africa
Color
Blue, Green, Black
Black, Brownish, White, Brown
Streak
White
Reddish, Black
For which Rashi?
Gemini, Sagittarius
-
Specific Gravity
3.04-3.17
4.76-5.03
Fracture
Uneven
Conchoidal
Cleavage
{001} Indistinct, {???} Indistinct
None
Mohs Hardness
5.5
5.5-6.5
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
-
Transparency
Transparent, Translucent
Translucent
Refractive Index
1.604-1.646
-9999
Crystal System
monoclinic
-
Birefringence
0.031-0.036
-9999
Clarity
Transparent
Translucent
Neurological
Balances digestive system and reduces bloating
-
Digestive
Supports digestive health
-
Psychology
Clarity
Insight
Healing
Emotional healing
-
Qualities Associated
Psychic Abilities
Grounding
Lazulite Vs Jacobsite Fracture
Fracture is an important parameter when you compare Lazulite and Jacobsite Physical Properties. It is necessary to understand the significance of these properties, before you compare Lazulite Vs Jacobsite 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. Jacobsite fracture is Conchoidal.
Lazulite Vs Jacobsite Luster
A primary knowledge about Lazulite vs Jacobsite 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.