Dumortierite

Fayalite

Dumortierite Vs Fayalite

Dumortierite

Fayalite

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1 Astrology

1.1 Origin

Southern and central Africa, violet, blue, violet, blue

Southern and central Africa

1.2 Color

Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink

Yellow, Brown, Black, Black

1.3 Streak

White

1.4 For which Rashi?

Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius

Not Available

1.5 Planet

Saturn

Not Available

1.6 Element of Planets

Water

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Receptive

Not Available

1.9 Deities

Isis

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Healing

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.26-3.414.392

1 7.18

2.5 Fracture

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

2.6 Cleavage

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

{010} moderate, {100} imperfect

2.7 Mohs Hardness

7-8.56.5-7

2 10

2.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

3 Optical Properties

3.1 Luster

Vitreous

Vitreous, Resinous

3.2 Pleochroism

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

Faint

3.3 Dispersion

NoneNA

0.007 1

3.4 Transparency

Translucent, Translucent to opaque

TransparentAnthony et al, Handbook of mineralogy (2001)

3.5 Refractive Index

1.669-1.7231.827-1.879

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

3.8 Birefringence

0.011-0.0370.042-0.051

0 0.296

3.9 Clarity

Translucent

TransparentAnthony et al

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Dumortierite Vs Fayalite Fracture

Fracture is an important parameter when you compare Dumortierite and Fayalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Fayalite 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 ConchoidalWalter Schumann, Fibrous and Gemstones of the world (2001) More from other references. Fayalite fracture is Brittle, Conchoidal, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001).

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Dumortierite Vs Fayalite Luster

A primary knowledge about Dumortierite vs Fayalite 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. Fayalite, on other hand, exhibits Resinous and Vitreous luster.