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Opal
Opal

Zinnwaldite
Zinnwaldite



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Opal
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Zinnwaldite

Opal Vs Zinnwaldite

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Astrology

Origin

Ethiopia
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Color

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

Streak

White
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

-
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How to Wear?

Finger

-
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Ring Metal

-
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Deities

Cupid
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Not to wear with

-
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Powers

Astral Projection, Psychicism
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Birthstone

Planetary

-
-

Talisman

-
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Physical Properties

Tenacity

BrittleWalter Schumann
Elastic

Solubility

hot salt water
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Durability

-
-

Specific Gravity

1.98-2.252.9-3.1
1 7.18
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Fracture

Conchoidal
Uneven

Cleavage

None
Perfect basal {001}

Mohs Hardness

5-6.53.5-4.0
2 10
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Chemical Composition

SiO2 · nH2O
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Optical Properties

Luster

Vitreous, Pearly
Pearly, Vitreous

Pleochroism

None
Distinct

Dispersion

0.010.02
0.005 1
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Transparency

Transparent, Translucent, Transparent to translucent
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Refractive Index

1.37-1.521.565-1.625
1 3.25
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Optic Character

-
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Crystal System

Trigonal
monoclinic

Birefringence

-99990.040-0.050
0 0.296
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Clarity

Transparent
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Benefits

Physical

Neurological

Enhances mental clarity and focus
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Cardiovascular

-
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Respiratory

-
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Reproductive

-
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Digestive

-
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Psychology

Creativity
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Healing

Emotional healing
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Qualities Associated

Creativity
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Opal Vs Zinnwaldite Fracture

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

Opal Vs Zinnwaldite Luster

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