Cordierite

Spinel

Cordierite Vs Spinel

Cordierite

Spinel

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Astrology

Origin

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

Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia

Color

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

Blue, Violet, Colorless, Red, Green, Brown

Streak

White

For which Rashi?

Sagittarius, Scorpio

Planet

Pluto

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Hephaestus

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.57-2.663.64-3.66

1 7.18

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Fracture

Subconchoidal, Conchoidal

Conchoidal, Uneven

Cleavage

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

None, but may exhibit slight parting

Mohs Hardness

7-7.58

2 10

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Chemical Composition

Mg2Al4Si5O18

MgAl₂O₄

Optical Properties

Luster

Greasy, Vitreous

Vitreous

Pleochroism

X = pale yellow

Absent

Dispersion

0.010.02

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Refractive Index

-99991.73

1 3.25

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Optic Character

Crystal System

Orthorhombic

Isometric

Birefringence

-9999-9999

0 0.296

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Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Supports healthy digestion

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Intuition

Revitalization

Healing

Emotional healing

Qualities Associated

Psychic Abilities

Vitality

Cordierite Vs Spinel Fracture

Fracture is an important parameter when you compare Cordierite and Spinel Physical Properties. It is necessary to understand the significance of these properties, before you compare Cordierite Vs Spinel 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 Subconchoidal and Conchoidal. Spinel fracture is Conchoidal and Uneven.

Compare Blue Gemstones

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Cordierite Vs Spinel Luster

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