Spinel

Dumortierite

Spinel Vs Dumortierite

Spinel

Dumortierite

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1 Astrology

1.1 Origin

Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia

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

1.2 Color

Blue, Violet, Colorless, Red, Green, Brown

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

1.3 Streak

White

1.4 For which Rashi?

Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio

Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius

1.5 Planet

Pluto

Saturn

1.6 Element of Planets

Not Available

Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Projective

Receptive

1.9 Deities

Hephaestus

Isis

1.10 Not to wear with

Not Available

1.11 Powers

Money

Healing

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

none

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.64-3.663.26-3.41

1 7.18

2.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

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

2.6 Cleavage

None, but may exhibit slight parting

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

2.7 Mohs Hardness

87-8.5

2 10

2.8 Chemical Composition

MgAl₂O₄

AlAl₆O₃BSi₃O₁₈

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Absent

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

3.3 Dispersion

0.02None

0.007 1

3.4 Transparency

Transparent, Translucent, Transparent to translucent

Translucent, Translucent to opaque

3.5 Refractive Index

1.731.669-1.723

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Isometric

Orthorhombic

3.8 Birefringence

Not Available0.011-0.037

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Translucent

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

Spinel Vs Dumortierite Fracture

Fracture is an important parameter when you compare Spinel and Dumortierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Spinel 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 Spinel is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Dumortierite fracture is ConchoidalWalter Schumann, Fibrous and Gemstones of the world (2001) More from other references.

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Spinel Vs Dumortierite Luster

A primary knowledge about Spinel 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. Spinel exhibits Vitreous luster. Dumortierite, on other hand, exhibits Vitreous luster.