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Smithsonite
Smithsonite

Opal
Opal



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Smithsonite
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Opal

Smithsonite Vs Opal

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Astrology

Origin

USA, Southern and central Africa
Ethiopia

Color

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

Streak

White
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

Brittle
BrittleWalter Schumann

Solubility

-
hot salt water

Durability

-
-

Specific Gravity

4.00-4.651.98-2.25
1 7.18
👆🏻

Fracture

Uneven, Sub-Conchoidal
Conchoidal

Cleavage

Perfect on [1011]
None

Mohs Hardness

5-5.55-6.5
2 10
👆🏻

Chemical Composition

ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
SiO2 · nH2O

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Pearly

Pleochroism

-
None

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Translucent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.620-1.8501.37-1.52
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Trigonal

Birefringence

0.223-0.227-9999
0 0.296
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Clarity

Translucent
Transparent

Benefits

Physical

Neurological

-
Enhances mental clarity and focus

Cardiovascular

-
-

Respiratory

Good
-

Reproductive

-
-

Digestive

-
-

Psychology

Emotional Healing
Creativity

Healing

Emotional healing
Emotional healing

Qualities Associated

Harmony
Creativity

Smithsonite Vs Opal Fracture

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

Smithsonite Vs Opal Luster

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