Corundum

Opal

Corundum Vs Opal

Corundum

Opal

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1 Astrology

1.1 Origin

Southern and central Africa

Ethiopia

1.2 Color

Violet, Blue, Red, Yellow, Brown, gray

Yellow, White, Red, Brown, Blue

1.3 Streak

White, None

White

1.4 For which Rashi?

Not Available

Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio

1.5 Planet

Not Available

Mercury

1.6 Element of Planets

Not Available

Earth, Air, Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

Projective, Receptive

1.9 Deities

Not Available

Cupid

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Astral Projection, Psychicism

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Brittle

BrittleWalter Schumann

2.2 Solubility

insoluble

hot salt water

2.3 Durability

Not Available

2.4 Specific Gravity

3.90-4.051.98-2.25

1 7.18

2.5 Fracture

Uneven, Uneven, Gems, Difficult, Fibrous

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle

2.6 Cleavage

None – parting in 3 directions

None

2.7 Mohs Hardness

95-6.5

2 10

2.8 Chemical Composition

Al 2O 3Arthur Thomas , Gemstones (2009)

SiO₂ · nH₂O

3 Optical Properties

3.1 Luster

Adamantine, Vitreous

Vitreous, Pearly

3.2 Pleochroism

None

3.3 Dispersion

0.02None

0.007 1

3.4 Transparency

Transparent, Translucent

Transparent, Translucent, Transparent to translucent

3.5 Refractive Index

1.758-1.7801.37-1.52

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

3.8 Birefringence

0.007-0.010Not Available

0 0.296

3.9 Clarity

Gemmological Tables (2004) More from other references

Transparent

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

Corundum Vs Opal Fracture

Fracture is an important parameter when you compare Corundum and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Corundum Vs Opal 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 Corundum is Difficult, Fibrous, Gems, Uneven and Uneven. Opal fracture is Brittle, Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references.

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Corundum Vs Opal Luster

A primary knowledge about Corundum vs Opal 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. Corundum exhibits Adamantine and Vitreous luster. Opal, on other hand, exhibits Pearly and Vitreous luster.