Calcite Vs Astrophyllite
Origin
Mexico
Canada, Russia
Color
White, Colorless, White, pink, Yellow, Brown
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
Streak
White
Brown, White, Brown, White
For which Rashi?
Cancer
Not Available
Element of Planets
Earth, Sun
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Not Available
Deities
Not Available
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Not to wear with
Not Available
Not Available
Powers
Spirituality, Healing
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.67-2.73
3.2-3.4
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Brittle, Metallic
Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55
Perfect on [001] imperfect on [100]
Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Pearly
Greasy, Pearly
Pleochroism
NilArthur Thomas
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Dispersion
Not Available
Not Available
Transparency
Transparent, Translucent
Translucent
Refractive Index
1.486-1.658
1.678-1.758
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Triclinic
Birefringence
0.154-0.174
0.050
Clarity
Transparent
Translucent
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
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Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
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Calcite Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Calcite and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Calcite 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 Calcite is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009). Astrophyllite fracture is Brittle, Metallic and Uneven.
Calcite Vs Astrophyllite Luster
A primary knowledge about Calcite 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. Calcite exhibits Pearly and Vitreous luster. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.