Biotite

Astrophyllite

Biotite Vs Astrophyllite

Biotite

Astrophyllite

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Astrology

Origin

Canada, Russia

Color

Brown, Yellow, White, Greenish

Brown, Yellow, Greenish, Brownish, Red

Streak

White, gray

Brown, 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

2.7-3.33.2-3.4

1 7.18

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Fracture

Uneven, Even

Uneven

Cleavage

Perfect on the {001}

Perfect on [001] imperfect on [100]

Mohs Hardness

2.5-3.03

2 10

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Chemical Composition

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

(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Vitreous, Pearly

Greasy, Pearly

Pleochroism

Strong

Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow

Dispersion

-0.12

0.005 1

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Transparency

Translucent

Refractive Index

1.565-1.6251.678-1.758

1 3.25

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Optic Character

Crystal System

monoclinic

Triclinic

Birefringence

0.03-0.070.050

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Excellent

Reproductive

Digestive

Psychology

Grounding

Self-Reflection

Healing

Emotional healing

Spiritual healing

Qualities Associated

Grounding

Self-Reflection

Biotite Vs Astrophyllite Fracture

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

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Biotite Vs Astrophyllite Luster

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