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Opal
Opal

Sard
Sard



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Opal
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Sard

Opal Vs Sard

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Astrology

Origin

Ethiopia
Southern and central Africa

Color

Yellow, White, Red, Brown, Blue
White, Colorless, Blue, Red, Green, Yellow, Violet

Streak

White
-

For which Rashi?

Cancer, Libra, Scorpio
-

Planet

Mercury
-

Element of Planets

Earth, Air, Water
-

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

Cupid
-

Not to wear with

-
-

Powers

Astral Projection, Psychicism
-

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

BrittleWalter Schumann
-

Solubility

hot salt water
-

Durability

-
-

Specific Gravity

1.98-2.252.58-2.63
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

None
None

Mohs Hardness

5-6.56.5-7
2 10
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Chemical Composition

SiO2 · nH2O
SiO 2Ulrich Henn and Claudio C.

Optical Properties

Luster

Vitreous, Pearly
Waxy

Pleochroism

None
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent, Translucent, Transparent to translucent
Translucent

Refractive Index

1.37-1.521.535-1.539
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

-99990.008-0.010
0 0.296
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Clarity

Transparent
Translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

-
-

Respiratory

-
-

Reproductive

-
-

Digestive

-
-

Psychology

Creativity
Strength

Healing

Emotional healing
Emotional healing

Qualities Associated

Creativity
Protection

Opal Vs Sard Fracture

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

Opal Vs Sard Luster

A primary knowledge about Opal vs Sard 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. Sard, on other hand, exhibits Waxy luster.