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Petalite
Petalite

Obsidian
Obsidian



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Petalite
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Obsidian

Petalite Vs Obsidian

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1 Astrology
1.1 Origin
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
Australia, Canada, Guatemala, Italy, Kenya, Mexico, Turkey, Mexico, Guatemala, Mexico, Guatemala
1.2 Color
Colorless, gray, Yellow, White
Brown, Green
1.3 Streak
Colorless
Not Available
1.4 For which Rashi?
Not Available
Sagittarius
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
Projective
1.9 Deities
Not Available
Itzpapalotl
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Protection
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
Brittle
Not Available
2.2 Solubility
insoluble
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.402.35-2.60
Amber
1 7.18
2.5 Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Conchoidal, ConchoidalWalter Schumann, Conchoidal
2.6 Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
Not Available
2.7 Mohs Hardness
6-6.55-5.5
Amber
2 10
2.8 Chemical Composition
LiAlSi 4O 10Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Not Available
3 Optical Properties
3.1 Luster
Vitreous, Pearly
Vitreous
3.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
3.3 Dispersion
0.010.01
Fluorite
0.007 1
3.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
3.5 Refractive Index
1.502-1.5231.450-1.550
Agate Opal
1 3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
monoclinic
Amorphous
3.8 Birefringence
0.012-0.016Not Available
Achroite
0 0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
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

Petalite Vs Obsidian Fracture

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

Petalite Vs Obsidian Luster

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