Dumortierite

Lapis lazuli

Dumortierite Vs Lapis lazuli

Dumortierite

Lapis lazuli

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Astrology

Origin

Southern and central Africa

Afghanistan

Color

Blue, Violet, Brown, White, Greenish, pink

Violet, Blue, White

Streak

White

Blue

For which Rashi?

Leo, Sagittarius

Sagittarius

Planet

Saturn

Venus

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Isis

Venus

Not to wear with

Powers

Healing

Protection, Courage

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.26-3.412.50-3.00

1 7.18

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Fracture

Fibrous, ConchoidalWalter Schumann

Uneven-Conchoidal, ConchoidalWalter Schumann

Cleavage

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

3,6

Mohs Hardness

7-8.55.5

2 10

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Chemical Composition

AlAl₆O₃BSi₃O₁₈

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

Optical Properties

Luster

Vitreous

Vitreous, Greasy

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

Translucent, Translucent to opaque

Opaque

Refractive Index

1.669-1.7231.500-1.670

1 3.25

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Optic Character

Crystal System

Orthorhombic

Trigonal

Birefringence

0.011-0.037-9999

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

Patience

Wisdom

Healing

Emotional healing

Qualities Associated

Patience

Inner Truth

Dumortierite Vs Lapis lazuli Fracture

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

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Dumortierite Vs Lapis lazuli Luster

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