Almandine

Dumortierite

Almandine Vs Dumortierite

Almandine

Dumortierite

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Astrology

Origin

Austria, Brazil, Canada, India, Madagascar, Russia, Sri Lanka, USA

Southern and central Africa

Color

Red, Brown, Brownish, Black

Blue, Violet, Brown, White, Greenish, pink

Streak

White

For which Rashi?

Leo, Sagittarius

Planet

Saturn

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Isis

Not to wear with

Powers

Healing

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.95-4.303.26-3.41

1 7.18

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Fracture

Conchoidal

Fibrous, ConchoidalWalter Schumann

Cleavage

none

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

Mohs Hardness

7-7.57-8.5

2 10

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Chemical Composition

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

AlAl₆O₃BSi₃O₁₈

Optical Properties

Luster

Greasy, Vitreous

Vitreous

Pleochroism

None

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

Dispersion

0.030.01

0.005 1

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Transparency

Translucent, Translucent to opaque

Refractive Index

1.770-1.8201.669-1.723

1 3.25

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Optic Character

Crystal System

cubic

Orthorhombic

Birefringence

-99990.011-0.037

0 0.296

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Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Supports reproductive health

Digestive

Psychology

Strength

Patience

Healing

Emotional healing

Qualities Associated

Devotion

Patience

Almandine Vs Dumortierite Fracture

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

Compare Red Gemstones

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Almandine Vs Dumortierite Luster

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