Lapis lazuli

Dumortierite

Lapis lazuli Vs Dumortierite

Lapis lazuli

Dumortierite

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Astrology

Origin

Afghanistan

Southern and central Africa

Color

Violet, Blue, White

Blue, Violet, Brown, White, Greenish, pink

Streak

Blue

White

For which Rashi?

Sagittarius

Leo, Sagittarius

Planet

Venus

Saturn

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Venus

Isis

Not to wear with

Powers

Protection, Courage

Healing

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.50-3.003.26-3.41

1 7.18

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Fracture

Uneven-Conchoidal, ConchoidalWalter Schumann

Fibrous, ConchoidalWalter Schumann

Cleavage

3,6

Distinct on {100}, poor on {110}; parting on {001}

Mohs Hardness

5.57-8.5

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

AlAl₆O₃BSi₃O₁₈

Optical Properties

Luster

Vitreous, Greasy

Vitreous

Pleochroism

Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue

Dispersion

-0.01

0.005 1

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Transparency

Opaque

Translucent, Translucent to opaque

Refractive Index

1.500-1.6701.669-1.723

1 3.25

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Optic Character

Crystal System

Trigonal

Orthorhombic

Birefringence

-99990.011-0.037

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Reproductive

Digestive

Psychology

Wisdom

Patience

Healing

Emotional healing

Qualities Associated

Inner Truth

Patience

Lapis lazuli Vs Dumortierite Fracture

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

Compare Gems for Sagittarius

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Lapis lazuli Vs Dumortierite Luster

A primary knowledge about Lapis lazuli vs Dumortierite 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. Dumortierite, on other hand, exhibits Vitreous luster.