Lapis lazuli

Alunite

Lapis lazuli Vs Alunite

Lapis lazuli

Alunite

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Astrology

Origin

Afghanistan

Australia, Italy

Color

Violet, Blue, White

Yellow, Red, Reddish, Brown, Colorless, White, gray

Streak

Blue

White

For which Rashi?

Sagittarius

Planet

Venus

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Venus

Not to wear with

Powers

Protection, Courage

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

2.50-3.002.6-2.9

1 7.18

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Fracture

Uneven-Conchoidal, ConchoidalWalter Schumann

Conchoidal, Uneven

Cleavage

3,6

On {0001}, perfect

Mohs Hardness

5.53.5-4

2 10

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Chemical Composition

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

KAl3(SO4)2(OH)6

Optical Properties

Luster

Vitreous, Greasy

Vitreous, Pearly

Pleochroism

Dispersion

-0.02

0.005 1

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Transparency

Opaque

Refractive Index

1.500-1.6701.572

1 3.25

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Optic Character

Crystal System

Trigonal

Birefringence

-99990.020

0 0.296

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Clarity

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Reproductive

Digestive

Psychology

Wisdom

Stability

Healing

Emotional healing

Qualities Associated

Inner Truth

Stability

Lapis lazuli Vs Alunite Fracture

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

Compare Gems for Sagittarius

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Lapis lazuli Vs Alunite Luster

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