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Opal
Opal

Caledonite
Caledonite



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Opal
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Caledonite

Opal Vs Caledonite

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Astrology

Origin

Ethiopia
USA

Color

Yellow, White, Red, Brown, Blue
Blue, Green

Streak

White
Blue, Greenish, White

For which Rashi?

Cancer, Libra, Scorpio
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Planet

Mercury
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Element of Planets

Earth, Air, Water
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Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

Cupid
-

Not to wear with

-
-

Powers

Astral Projection, Psychicism
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Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

BrittleWalter Schumann
Brittle

Solubility

hot salt water
-

Durability

-
-

Specific Gravity

1.98-2.255.6-5.76
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

None
[001] perfect; [100] distinct

Mohs Hardness

5-6.52.5-3
2 10
👆🏻

Chemical Composition

SiO2 · nH2O
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

None
Weak

Dispersion

0.010.05
0.005 1
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Transparency

Transparent, Translucent, Transparent to translucent
Transparent

Refractive Index

1.37-1.521.818-1.909
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

-99990.091
0 0.296
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Clarity

Transparent
Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus
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Cardiovascular

-
-

Respiratory

-
Good

Reproductive

-
-

Digestive

-
-

Psychology

Creativity
Creativity

Healing

Emotional healing
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Qualities Associated

Creativity
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Opal Vs Caledonite Fracture

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

Opal Vs Caledonite Luster

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