Prehnite

Demantoid

Prehnite Vs Demantoid

Prehnite

Demantoid

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1 Astrology

1.1 Origin

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

Italy

1.2 Color

Green, Colorless, gray, Yellow, White

Green

1.3 Streak

Colorless

Not Available

1.4 For which Rashi?

Libra

Not Available

1.5 Planet

Venus

Not Available

1.6 Element of Planets

Earth

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

Freya

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Brittle

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.80-2.953.77-3.95

1 7.18

2.5 Fracture

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

Not Available

2.6 Cleavage

Distinct on [001]

Not Available

2.7 Mohs Hardness

6-6.56.5

2 10

2.8 Chemical Composition

Ca₂Al₂Si₃O₁₂(OH)

Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

3 Optical Properties

3.1 Luster

Vitreous

Adamantine

3.2 Pleochroism

AbsentWalter Schumann

None

3.3 Dispersion

NoneNA

0.007 1

3.4 Transparency

Translucent

Gemmological Tables (2004)

3.5 Refractive Index

1.611-1.6731.880-1.890

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

cubic

3.8 Birefringence

0.021-0.033Not Available

0 0.296

3.9 Clarity

TranslucentHerve Nicolas Lazzarelli

TransparentUlrich Henn and Claudio C. Milisenda

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

Prehnite Vs Demantoid Fracture

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

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Prehnite Vs Demantoid Luster

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