Sugilite Vs Lapis lazuli
Origin
Canada, Southern and central Africa, Italy, Australia, India
Afghanistan
Color
Violet, Brownish, Yellow, Reddish, Pale pink
Violet, Blue, White
For which Rashi?
Virgo
Sagittarius
Planet
Mercury, Jupiter
Venus
Element of Planets
Water
Water
Energy
Receptive
Receptive
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Protection, Courage
Planetary
All
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.69-2.79
2.50-3.00
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Poor on {0001}
3,6
Mohs Hardness
5.5-6.5
5.5
Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Weak
AbsentWalter Schumann
Dispersion
Not Available
None
Transparency
Translucent
Opaque
Refractive Index
1.607-1.612
1.500-1.670
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Trigonal
Birefringence
0.003
Not Available
Clarity
Translucent
Gemstones of the world (2001)
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
Sugilite Vs Lapis lazuli Fracture
Fracture is an important parameter when you compare Sugilite and Lapis lazuli Physical Properties. It is necessary to understand the significance of these properties, before you compare Sugilite Vs Lapis lazuli 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 Sugilite is ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas and Gemstones (2009). Lapis lazuli fracture is Uneven-Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001).
Sugilite Vs Lapis lazuli Luster
A primary knowledge about Sugilite vs Lapis lazuli 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. Sugilite exhibits Vitreous luster. Lapis lazuli, on other hand, exhibits Vitreous and Greasy luster.
