Origin
Afghanistan, China, Madagascar, Southern and central Africa, Pakistan, Sri Lanka, USA
Canada, Russia
Color
Red, Reddish, orange, Brown
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
Streak
White
Brown, White, Brown, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
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
4.12-4.18
3.2-3.4
Fracture
ConchoidalArthur Thomas, Conchoidal, Brittle
Uneven, Brittle, Metallic
Cleavage
{???} Distinct
Perfect on [001] imperfect on [100]
Chemical Composition
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Greasy, Pearly
Pleochroism
Not Available
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.789-1.820
1.678-1.758
Optic Character
Not Available
Not Available
Crystal System
Isometric
Triclinic
Birefringence
0.027
0.050
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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
Spessartine Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Spessartine and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Spessartine Vs Astrophyllite 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 Spessartine is Brittle, Conchoidal and ConchoidalArthur Thomas. Astrophyllite fracture is Brittle, Metallic and Uneven.
Spessartine Vs Astrophyllite Luster
A primary knowledge about Spessartine vs Astrophyllite 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. Spessartine exhibits Vitreous luster. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.