Dumortierite

Prehnite

Dumortierite Vs Prehnite

Dumortierite

Prehnite

Add ⊕

1 Astrology

1.1 Origin

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

Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France

1.2 Color

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

Green, Colorless, gray, Yellow, White

1.3 Streak

White

Colorless

1.4 For which Rashi?

Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius

Libra

1.5 Planet

Saturn

Venus

1.6 Element of Planets

Water

Earth

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Receptive

1.9 Deities

Isis

Freya

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

Brittle

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.26-3.412.80-2.95

1 7.18

2.5 Fracture

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

Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

2.6 Cleavage

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

Distinct on [001]

2.7 Mohs Hardness

7-8.56-6.5

2 10

2.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

Ca₂Al₂Si₃O₁₂(OH)

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

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

AbsentWalter Schumann

3.3 Dispersion

NoneNone

0.007 1

3.4 Transparency

Translucent, Translucent to opaque

Translucent

3.5 Refractive Index

1.669-1.7231.611-1.673

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

3.8 Birefringence

0.011-0.0370.021-0.033

0 0.296

3.9 Clarity

Translucent

TranslucentHerve Nicolas Lazzarelli

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 Prehnite Fracture

Fracture is an important parameter when you compare Dumortierite and Prehnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Prehnite 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. Prehnite fracture is Brittle, Gemstones of the world (2001) More from other references, Metallic, Uneven, UnevenWalter Schumann, White and Yellow.

Compare Gems for Leo » More

Dumortierite Vs Rhodochrosite

Dumortierite Vs Sunstone

Dumortierite Vs Aqua Aura

» More

More Compare Gems for Leo

Dumortierite Vs Prehnite Luster

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