Opal

Lapis lazuli

Opal Vs Lapis lazuli

Opal

Lapis lazuli

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Astrology

Origin

Ethiopia

Afghanistan

Color

Yellow, White, Red, Brown, Blue

Violet, Blue, White

Streak

White

Blue

For which Rashi?

Cancer, Libra, Scorpio

Sagittarius

Planet

Mercury

Venus

Element of Planets

Earth, Air, Water

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Cupid

Venus

Not to wear with

Powers

Astral Projection, Psychicism

Protection, Courage

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

BrittleWalter Schumann

Solubility

hot salt water

Durability

Specific Gravity

1.98-2.252.50-3.00

1 7.18

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Fracture

Conchoidal

Uneven-Conchoidal, ConchoidalWalter Schumann

Cleavage

None

3,6

Mohs Hardness

5-6.55.5

2 10

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Chemical Composition

SiO₂ · nH₂O

The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)₈Al₆Si₆O₂₄(S,SO)₄

Optical Properties

Luster

Vitreous, Pearly

Vitreous, Greasy

Pleochroism

None

Dispersion

0.01-

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Opaque

Refractive Index

1.37-1.521.500-1.670

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

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Wisdom

Healing

Emotional healing

Qualities Associated

Creativity

Inner Truth

Opal Vs Lapis lazuli Fracture

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

Compare Semi Precious Gemstones

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Opal Vs Simpsonite

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Opal Vs Lapis lazuli Luster

A primary knowledge about Opal vs Lapis lazuli 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. Lapis lazuli, on other hand, exhibits Vitreous and Greasy luster.