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Grossular
Grossular

Petalite
Petalite



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Grossular
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Petalite

Grossular Vs Petalite

1 Astrology
1.1 Origin
Sri Lanka, India, Brazil
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
1.2 Color
Green, Brown, Brown, Colorless, Green, gray, Yellow
Colorless, gray, Yellow, White
1.3 Streak
Brownish, White, Brownish, White
Colorless
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
Not Available
1.9 Deities
Not Available
Not Available
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
Brittle
2.2 Solubility
Not Available
insoluble
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
3.55-3.732.40
Amber
1 7.18
2.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
2.6 Cleavage
none
Perfect on {001}, poor on {201} with 38.5° angle between the two
2.7 Mohs Hardness
7-7.56-6.5
Amber
2 10
2.8 Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
LiAlSi 4O 10Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Greasy, Vitreous
Vitreous, Pearly
3.2 Pleochroism
None
AbsentWalter Schumann
3.3 Dispersion
0.020.01
Fluorite
0.007 1
3.4 Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.730-1.7601.502-1.523
Agate Opal
1 3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
cubic
monoclinic
3.8 Birefringence
0.0200.012-0.016
Achroite
0 0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
Not Available
4.1.3 Respiratory
Not Available
Not Available
4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available

Grossular Vs Petalite Fracture

Fracture is an important parameter when you compare Grossular and Petalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Grossular Vs Petalite 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 Grossular is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Petalite fracture is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references and Subconchoidal.

Grossular Vs Petalite Luster

A primary knowledge about Grossular vs Petalite 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. Grossular exhibits Greasy and Vitreous luster. Petalite, on other hand, exhibits Pearly and Vitreous luster.