Siderite Vs Dravite
Origin
Brazil
Southern and central Africa
Color
Yellow, Brown, gray, Greenish
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
For which Rashi?
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Planet
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Element of Planets
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Energy
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Finger
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Ring Metal
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
Brittle
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Solubility
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Durability
Not Available
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Specific Gravity
3.83-3.89
3.03-3.18
Fracture
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Perfect on {01 1 1}
{???} Indistinct
Mohs Hardness
3.5-4.5
7-7.5
Chemical Composition
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Pleochroism
Not Available
Very strong: pale yellow colorless
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.633-1.875
1.614-1.666
Optic Character
Not Available
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Crystal System
Trigonal
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Birefringence
0.242
0.014-0.032
Clarity
Transparent
Transparent
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Siderite Vs Dravite Fracture
Fracture is an important parameter when you compare Siderite and Dravite Physical Properties. It is necessary to understand the significance of these properties, before you compare Siderite Vs Dravite 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 Siderite is Uneven, Conchoidal, UnevenArthur Thomas and Brittle. Dravite fracture is Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal and Brittle.
Siderite Vs Dravite Luster
A primary knowledge about Siderite vs Dravite 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. Siderite exhibits Pearly luster. Dravite, on other hand, exhibits Vitreous luster.
