Howlite Vs Sugilite
Origin
Southern and central Africa
Canada, Southern and central Africa, Italy, Australia, India
Color
Blue, Colorless, White
Violet, Brownish, Yellow, Reddish, Pale pink
For which Rashi?
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
Virgo
Planet
Moon
Mercury, Jupiter
Element of Planets
Earth
Water
Energy
Not Available
Receptive
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
All
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.45-2.58
2.69-2.79
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None
Poor on {0001}
Mohs Hardness
3-3.5
5.5-6.5
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
NilArthur Thomas
Weak
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.583-1.608
1.607-1.612
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Hexagonal
Birefringence
0.019
0.003
Clarity
Gemmological Tables (2004) More from other references
Translucent
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
Howlite Vs Sugilite Fracture
Fracture is an important parameter when you compare Howlite and Sugilite Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite Vs Sugilite 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 Howlite is UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle and Conchoidal. Sugilite fracture is ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas and Gemstones (2009).
Howlite Vs Sugilite Luster
A primary knowledge about Howlite vs Sugilite 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. Howlite exhibits Vitreous luster. Sugilite, on other hand, exhibits Vitreous luster.
