Cordierite Iolite

Herderite

Cordierite Iolite Vs Herderite

Cordierite Iolite

Herderite

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1 Astrology

1.1 Origin

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

Southern and central Africa

1.2 Color

Violet, Blue

Colorless, White, Greenish

1.3 Streak

Not Available

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

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.56-2.662.90-3.02

1 7.18

2.5 Fracture

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

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

2.6 Cleavage

Not Available

Indistinct on {110}

2.7 Mohs Hardness

7-7.55-5.5

2 10

2.8 Chemical Composition

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

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Strong trichroism: colorless to yellowish

Not Available

3.3 Dispersion

0.02NA

0.007 1

3.4 Transparency

Transparent

3.5 Refractive Index

1.542-1.5781.587-1.642

1 3.25

3.6 Optic Character

Biaxial/+

3.7 Crystal System

Not Available

monoclinic

3.8 Birefringence

0.008-0.0120.028-0.032

0 0.296

3.9 Clarity

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

Cordierite Iolite Vs Herderite Fracture

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

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Cordierite Iolite Vs Herderite Luster

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