Obsidian

Grandidierite

Obsidian Vs Grandidierite

Obsidian

Grandidierite

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1 Astrology

1.1 Origin

Australia, Canada, Guatemala, Italy, Kenya, Mexico, Turkey, Mexico, Guatemala, Mexico, Guatemala

Madagascar

1.2 Color

Brown, Green

Green

1.3 Streak

Not Available

White

1.4 For which Rashi?

Sagittarius

Not Available

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Projective

Not Available

1.9 Deities

Itzpapalotl

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Protection

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.35-2.602.85-3.00

1 7.18

2.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Conchoidal

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

2.6 Cleavage

Not Available

Perfect

2.7 Mohs Hardness

5-5.57.5

2 10

2.8 Chemical Composition

Not Available

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

3 Optical Properties

3.1 Luster

Vitreous

Vitreous, Pearly

3.2 Pleochroism

AbsentWalter Schumann

visible

3.3 Dispersion

0.01NA

0.007 1

3.4 Transparency

Transparent, Translucent

Gemmological Tables (2004) More from other references

3.5 Refractive Index

1.450-1.5501.578-1.639

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Amorphous

Orthorhombic

3.8 Birefringence

Not Available0.037-0.039

0 0.296

3.9 Clarity

Transparent

Gemmological Tables (2004) More from other references

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Obsidian Vs Grandidierite Fracture

Fracture is an important parameter when you compare Obsidian and Grandidierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Obsidian Vs Grandidierite 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 Obsidian is Conchoidal, Conchoidal and ConchoidalWalter Schumann. Grandidierite fracture is Brittle, Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas.

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Obsidian Vs Grandidierite Luster

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