Howlite

Biotite

Howlite Vs Biotite

Howlite

Biotite

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Astrology

Origin

Southern and central Africa

Color

Blue, Colorless, White

Brown, Yellow, White, Greenish

Streak

White

White, gray

For which Rashi?

Gemini, Virgo

Planet

Element of Planets

Earth

Energy

How to Wear?

Finger

Ring Metal

Deities

Quan Yin

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.45-2.582.7-3.3

1 7.18

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Fracture

Conchoidal

Uneven, Even

Cleavage

None

Perfect on the {001}

Mohs Hardness

3-3.52.5-3.0

2 10

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Chemical Composition

Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Optical Properties

Luster

Vitreous

Vitreous, Pearly

Pleochroism

Strong

Dispersion

0.01-

0.005 1

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Transparency

Refractive Index

1.583-1.6081.565-1.625

1 3.25

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Optic Character

Crystal System

monoclinic

Birefringence

0.0190.03-0.07

0 0.296

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Clarity

Benefits

Physical

Neurological

Aids in mental clarity and focus

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Calming

Grounding

Healing

Emotional healing

Qualities Associated

Calming

Grounding

Howlite Vs Biotite Fracture

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

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Howlite Vs Biotite Luster

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