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Biotite
Biotite

Legrandite
Legrandite



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Biotite
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Legrandite

Biotite Vs Legrandite

Astrology

Origin

-
Mexico

Color

Brown, Yellow, White, Greenish
Yellow, yellowish orange

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

2.7-3.33.98-4.04
1 7.18
👆🏻

Fracture

Uneven, Even
Conchoidal

Cleavage

Perfect on the {001}
Imperfect, poor one {100}

Mohs Hardness

2.5-3.04.5-5
2 10
👆🏻

Chemical Composition

K(Mg,Fe++)3[AlSi3O10(OH,F)2
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

Strong
Colorless

Dispersion

-0.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.565-1.6251.702-1.740
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.03-0.070.060
0 0.296
👆🏻

Clarity

-
-

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

-
-

Respiratory

Good
-

Reproductive

-
-

Digestive

-
-

Psychology

Grounding
Creativity

Healing

Emotional healing
-

Qualities Associated

Grounding
Optimism

Biotite Vs Legrandite Fracture

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

Biotite Vs Legrandite Luster

A primary knowledge about Biotite vs Legrandite 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. Legrandite, on other hand, exhibits Vitreous luster.