Gedrite

Poudretteite

Gedrite Vs Poudretteite

Gedrite

Poudretteite

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Astrology

Origin

Southern and central Africa

Canada, Southern and central Africa

Color

Brown, Green, gray, White

Violet, Colorless, pink

Streak

gray, White

White

For which Rashi?

Planet

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.15-3.2592.51-2.53

1 7.18

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Fracture

Conchoidal, Splintery

Cleavage

Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.

None

Mohs Hardness

5.5-65

2 10

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Chemical Composition

(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous

Pleochroism

Weak to moderate

Colorless

Dispersion

0.020.02

0.005 1

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Transparency

Transparent

Refractive Index

1.625-1.7181.511-1.532

1 3.25

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Optic Character

Crystal System

Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Hexagonal

Birefringence

-99990.021

0 0.296

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Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Focus

Healing

Qualities Associated

Protection

Love

Gedrite Vs Poudretteite Fracture

Fracture is an important parameter when you compare Gedrite and Poudretteite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gedrite Vs Poudretteite 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. Poudretteite fracture is Conchoidal and Splintery.

Compare Brown Gemstones

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Gedrite Vs Mellite

Gedrite Vs Poudretteite Luster

A primary knowledge about Gedrite vs Poudretteite 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. Gedrite exhibits Vitreous luster. Poudretteite, on other hand, exhibits Vitreous luster.