Astrophyllite

Cordierite Iolite

Astrophyllite Vs Cordierite Iolite

Astrophyllite

Cordierite Iolite

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1 Astrology

1.1 Origin

Canada, Russia

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

1.2 Color

Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow

Violet, Blue

1.3 Streak

Brown, White, Brown, 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

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.2-3.42.56-2.66

1 7.18

2.5 Fracture

Uneven, Brittle, Metallic

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

2.6 Cleavage

Perfect on [001] imperfect on [100]

Not Available

2.7 Mohs Hardness

37-7.5

2 10

2.8 Chemical Composition

(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

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

3 Optical Properties

3.1 Luster

Greasy, Pearly

Vitreous

3.2 Pleochroism

Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow

Strong trichroism: colorless to yellowish

3.3 Dispersion

NA0.02

0.007 1

3.4 Transparency

Translucent

Transparent

3.5 Refractive Index

1.678-1.7581.542-1.578

1 3.25

3.6 Optic Character

Not Available

Biaxial/+

3.7 Crystal System

Triclinic

Not Available

3.8 Birefringence

0.0500.008-0.012

0 0.296

3.9 Clarity

Translucent

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

Astrophyllite Vs Cordierite Iolite Fracture

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

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Astrophyllite Vs Cordierite Iolite Luster

A primary knowledge about Astrophyllite 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. Astrophyllite exhibits Greasy and Pearly luster. Cordierite Iolite, on other hand, exhibits Vitreous luster.