Obsidian

Opal

Obsidian Vs Opal

Obsidian

Opal

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Astrology

Origin

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

Ethiopia

Color

Brown, Green

Yellow, White, Red, Brown, Blue

Streak

White

For which Rashi?

Sagittarius

Cancer, Libra, Scorpio

Planet

Mercury

Element of Planets

Earth, Air, Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Itzpapalotl

Cupid

Not to wear with

Powers

Protection

Astral Projection, Psychicism

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

BrittleWalter Schumann

Solubility

hot salt water

Durability

Specific Gravity

2.35-2.601.98-2.25

1 7.18

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Fracture

Conchoidal, ConchoidalWalter Schumann

Conchoidal

Cleavage

None

Mohs Hardness

5-5.55-6.5

2 10

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Chemical Composition

SiO2

SiO₂ · nH₂O

Optical Properties

Luster

Vitreous

Vitreous, Pearly

Pleochroism

None

Dispersion

0.010.01

0.005 1

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Transparency

Transparent, Translucent

Transparent, Translucent, Transparent to translucent

Refractive Index

1.450-1.5501.37-1.52

1 3.25

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Optic Character

Crystal System

Trigonal

Birefringence

-9999-9999

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Aids in mental clarity and focus

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Grounding

Creativity

Healing

Physical healing

Emotional healing

Qualities Associated

Protection

Creativity

Obsidian Vs Opal Fracture

Fracture is an important parameter when you compare Obsidian and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Obsidian 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 Obsidian is Conchoidal and ConchoidalWalter Schumann. Opal fracture is Conchoidal.

Compare Gems for Sagittarius

Obsidian Vs Sodalite

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Obsidian Vs Tanzanite

Obsidian Vs Opal Luster

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