Cordierite

Legrandite

Cordierite Vs Legrandite

Cordierite

Legrandite

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1 Astrology

1.1 Origin

Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania

Mexico

1.2 Color

Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray

Yellow, yellowish orange

1.3 Streak

White

1.4 For which Rashi?

Not Available

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

1.9 Deities

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

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.57-2.663.98-4.04

1 7.18

2.5 Fracture

Subconchoidal, Conchoidal, Brittle

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

2.6 Cleavage

Fair on {100}, poor on {001} and {010}

Imperfect, poor one {100}

2.7 Mohs Hardness

7-7.54.5-5

2 10

2.8 Chemical Composition

Mg2Al4Si5O18

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

3 Optical Properties

3.1 Luster

Greasy, Vitreous

Vitreous

3.2 Pleochroism

X = pale yellow

Colorless

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Not Available

Gems

3.5 Refractive Index

Not Available1.702-1.740

1 3.25

1.4 Optic Character

Not Available

1.5 Crystal System

Orthorhombic

monoclinic

1.6 Birefringence

Not Available0.060

0 0.296

1.9 Clarity

Not Available

Gems

2 Benefits

2.1 Physical

2.1.1 Neurological

Not Available

2.1.2 Cardiovascular

Not Available

2.1.3 Respiratory

Not Available

2.1.4 Reproductive

Not Available

2.1.5 Digestive

Not Available

2.2 Psychology

Not Available

2.3 Healing

Not Available

2.4 Qualities Associated

Not Available

Cordierite Vs Legrandite Fracture

Fracture is an important parameter when you compare Cordierite and Legrandite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cordierite Vs Legrandite 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 Cordierite is Brittle, Conchoidal and Subconchoidal. Legrandite fracture is Brittle, Conchoidal, Gemstones (2009) and UnevenArthur Thomas.

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Cordierite Vs Legrandite Luster

A primary knowledge about Cordierite vs Legrandite 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. Cordierite exhibits Greasy and Vitreous luster. Legrandite, on other hand, exhibits Vitreous luster.