Spinel

Bertrandite

Spinel Vs Bertrandite

Spinel

Bertrandite

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Astrology

Origin

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

Southern and central Africa

Color

Blue, Violet, Colorless, Red, Green, Brown

Colorless, Yellow

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

Solubility

Durability

Specific Gravity

3.64-3.662.59-2.60

1 7.18

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Fracture

Conchoidal, Uneven

Cleavage

None, but may exhibit slight parting

{001} Perfect, {110} Distinct, {101} Distinct

Mohs Hardness

86-7

2 10

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Chemical Composition

MgAl₂O₄

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Vitreous

Pleochroism

Absent

none.

Dispersion

0.020.01

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

TransparentAnthony et al

Refractive Index

1.731.583-1.614

1 3.25

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Optic Character

Crystal System

Isometric

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

Birefringence

-9999-9999

0 0.296

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Clarity

TransparentUlrich Henn and Claudio C. Milisenda

TransparentAnthony et al

Benefits

Physical

Neurological

Cardiovascular

Promotes mental clarity

Respiratory

Good

Reproductive

Digestive

Psychology

Revitalization

Harmony

Healing

Emotional healing

Qualities Associated

Vitality

Creativity

Spinel Vs Bertrandite Fracture

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

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Spinel Vs Bertrandite Luster

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