Spinel

Biotite

Spinel Vs Biotite

Spinel

Biotite

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Astrology

Origin

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

Color

Blue, Violet, Colorless, Red, Green, Brown

Brown, Yellow, White, Greenish

Streak

White

White, gray

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

3.64-3.662.7-3.3

1 7.18

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Fracture

Conchoidal, Uneven

Uneven, Even

Cleavage

None, but may exhibit slight parting

Perfect on the {001}

Mohs Hardness

82.5-3.0

2 10

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Chemical Composition

MgAl₂O₄

K(Mg,Fe++)3[AlSi3O10(OH,F)2

Optical Properties

Luster

Vitreous

Vitreous, Pearly

Pleochroism

Absent

Strong

Dispersion

0.02-

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Refractive Index

1.731.565-1.625

1 3.25

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Optic Character

Crystal System

Isometric

monoclinic

Birefringence

-99990.03-0.07

0 0.296

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Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Revitalization

Grounding

Healing

Emotional healing

Qualities Associated

Vitality

Grounding

Spinel Vs Biotite Fracture

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

Compare Gems for Scorpio

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Spinel Vs Biotite Luster

A primary knowledge about Spinel vs Biotite 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. Biotite, on other hand, exhibits Vitreous and Pearly luster.