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Biotite
Biotite

Anhydrite
Anhydrite



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Biotite
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Anhydrite

Biotite Vs Anhydrite

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Astrology

Origin

-
Mexico

Color

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

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
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.7-3.32.90-2.98
1 7.18
👆🏻

Fracture

Uneven, Even
Conchoidal

Cleavage

Perfect on the {001}
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Mohs Hardness

2.5-3.03.5
2 10
👆🏻

Chemical Composition

K(Mg,Fe++)3[AlSi3O10(OH,F)2
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Optical Properties

Luster

Vitreous, Pearly
Pearly, Greasy

Pleochroism

Strong
For violet varieties

Dispersion

-0.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.565-1.6251.570-1.614
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.03-0.070.042-0.044
0 0.296
👆🏻

Clarity

-
Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus
Enhances mental clarity and focus

Cardiovascular

-
Supports heart health

Respiratory

Good
Good

Reproductive

-
-

Digestive

-
-

Psychology

Grounding
Calmness

Healing

Emotional healing
Emotional healing

Qualities Associated

Grounding
Acceptance

Biotite Vs Anhydrite Fracture

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

Biotite Vs Anhydrite Luster

A primary knowledge about Biotite vs Anhydrite 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. Anhydrite, on other hand, exhibits Pearly and Greasy luster.