Biotite

Phlogopite

Biotite Vs Phlogopite

Biotite

Phlogopite

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Astrology

Origin

Italy

Color

Brown, Yellow, White, Greenish

Brownish, Red, Brown, Green, White, gray, Yellow, Reddish

Streak

White, gray

White

For which Rashi?

Planet

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Tough

Solubility

Durability

Specific Gravity

2.7-3.32.78-2.85

1 7.18

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Fracture

Uneven, Even

Uneven

Cleavage

Perfect on the {001}

Perfect basal (001)

Mohs Hardness

2.5-3.02-2.5

2 10

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Chemical Composition

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

KMg3(Si3Al)O10(F,OH)2

Optical Properties

Luster

Vitreous, Pearly

Pearly

Pleochroism

Strong

Dispersion

-0.04

0.005 1

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Transparency

Refractive Index

1.565-1.6251.530-1.573

1 3.25

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Optic Character

Crystal System

monoclinic

Birefringence

0.03-0.070.0280-0.0450

0 0.296

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Clarity

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Grounding

Self-discovery

Healing

Emotional healing

Qualities Associated

Grounding

Awareness

Biotite Vs Phlogopite Fracture

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

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Biotite Vs Phlogopite Luster

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