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Biotite
Biotite

Agrellite
Agrellite



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Biotite
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Agrellite

Biotite Vs Agrellite

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Astrology

Origin

-
Canada

Color

Brown, Yellow, White, Greenish
White, Greenish

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
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.7-3.32.88
1 7.18
👆🏻

Fracture

Uneven, Even
-

Cleavage

Perfect on the {001}
perfect [110]

Mohs Hardness

2.5-3.05.5
2 10
👆🏻

Chemical Composition

K(Mg,Fe++)3[AlSi3O10(OH,F)2
NaCa2Si4O10F

Optical Properties

Luster

Vitreous, Pearly
Pearly

Pleochroism

Strong
colorless.

Dispersion

-0.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.565-1.6251.567
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Triclinic

Birefringence

0.03-0.070.014
0 0.296
👆🏻

Clarity

-
-

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

-
Supports heart health

Respiratory

Good
Good

Reproductive

-
-

Digestive

-
-

Psychology

Grounding
Harmony

Healing

Emotional healing
Emotional healing

Qualities Associated

Grounding
Balance

Biotite Vs Agrellite Fracture

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

Biotite Vs Agrellite Luster

A primary knowledge about Biotite vs Agrellite 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. Agrellite, on other hand, exhibits Pearly luster.