Thulite Vs Lapis lazuli
Origin
Australia
  
Afghanistan
  
Color
Red
  
Violet, Blue, White
  
Streak
White, Colorless
  
Blue
  
For which Rashi?
Not Available
  
Sagittarius
  
Planet
Not Available
  
Venus
  
Element of Planets
Not Available
  
Water
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Receptive
  
Deities
Not Available
  
Venus
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Protection, Courage
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.1
  
2.50-3.00
  
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Perfect {010} imperfect {100}
  
3,6
  
Mohs Hardness
6-7
  
5.5
  
Chemical Composition
Ca2Al3(SiO4)3(OH)
  
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
  
Luster
Vitreous
  
Vitreous, Greasy
  
Pleochroism
Present
  
AbsentWalter Schumann
  
Dispersion
Not Available
  
None
  
Transparency
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.
  
Opaque
  
Refractive Index
1.695
  
1.500-1.670
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Orthorhombic
  
Trigonal
  
Birefringence
0.006-0.018
  
Not Available
  
Clarity
OpaqueHerve Nicolas Lazzarelli
  
Gemstones of the world (2001)
  
Physical
  
  
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
  
Thulite Vs Lapis lazuli Fracture
Fracture is an important parameter when you compare Thulite and Lapis lazuli Physical Properties. It is necessary to understand the significance of these properties, before you compare Thulite 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 Thulite is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Lapis lazuli fracture is ConchoidalWalter Schumann, Gemstones of the world (2001) and Uneven-Conchoidal.
Thulite Vs Lapis lazuli Luster
A primary knowledge about Thulite 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. Thulite exhibits Vitreous luster. Lapis lazuli, on other hand, exhibits Greasy and Vitreous luster.