Legrandite

Cordierite Iolite

Legrandite Vs Cordierite Iolite

Legrandite

Cordierite Iolite

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1 Astrology

1.1 Origin

Mexico

Canada, Madagascar, Southern and central Africa, Sri Lanka, USA

1.2 Color

Yellow, yellowish orange

Violet, Blue

1.3 Streak

White

Not Available

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

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.98-4.042.56-2.66

1 7.18

2.5 Fracture

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

2.6 Cleavage

Imperfect, poor one {100}

Not Available

2.7 Mohs Hardness

4.5-57-7.5

2 10

2.8 Chemical Composition

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

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Colorless

Strong trichroism: colorless to yellowish

3.3 Dispersion

NA0.02

0.007 1

3.4 Transparency

Gems

Transparent

3.5 Refractive Index

1.702-1.7401.542-1.578

1 3.25

3.6 Optic Character

Not Available

Biaxial/+

3.7 Crystal System

monoclinic

Not Available

3.8 Birefringence

0.0600.008-0.012

0 0.296

3.9 Clarity

Gems

Transparent

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

Legrandite Vs Cordierite Iolite Fracture

Fracture is an important parameter when you compare Legrandite and Cordierite Iolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Legrandite Vs Cordierite Iolite 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 Legrandite is Brittle, Conchoidal, Gemstones (2009) and UnevenArthur Thomas. Cordierite Iolite fracture is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven.

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Legrandite Vs Cordierite Iolite Luster

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