Gahnospinel Vs Opal
Origin
Sri Lanka
Ethiopia
Color
Blue
Yellow, White, Red, Brown, Blue
Streak
Not Available
White
For which Rashi?
Sagittarius, Scorpio
Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio
Element of Planets
Not Available
Earth, Air, Water
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Projective, Receptive
Not to wear with
Not Available
Not Available
Powers
Money
Astral Projection, Psychicism
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
BrittleWalter Schumann
Solubility
Not Available
hot salt water
Durability
Not Available
Not Available
Specific Gravity
3.65-4.55
1.98-2.25
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Cleavage
None, but may exhibit slight parting
None
Mohs Hardness
7.5-8
5-6.5
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
SiO2 · nH2O
Luster
Vitreous
Vitreous, Pearly
Pleochroism
AbsentWalter Schumann
None
Dispersion
Not Available
None
Transparency
Gemmological Tables (2004)
Transparent, Translucent, Transparent to translucent
Refractive Index
1.735-1.790
1.37-1.52
Optic Character
Not Available
Not Available
Crystal System
Isometric
Trigonal
Birefringence
Not Available
Not Available
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
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
Gahnospinel Vs Opal Fracture
Fracture is an important parameter when you compare Gahnospinel and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnospinel Vs Opal 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 Gahnospinel is ConchoidalArthur Thomas and Gemstones (2009). Opal fracture is Brittle, Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references.
Gahnospinel Vs Opal Luster
A primary knowledge about Gahnospinel vs Opal 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. Gahnospinel exhibits Vitreous luster. Opal, on other hand, exhibits Pearly and Vitreous luster.