Black Opal

Astrophyllite

Black Opal Vs Astrophyllite

Black Opal

Astrophyllite

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Astrology

Origin

Australia

Canada, Russia

Color

White, Colorless, Blue, Red, Green, Yellow, Violet

Brown, Yellow, Greenish, Brownish, Red

Streak

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

Solubility

Durability

Specific Gravity

1.97-2.223.2-3.4

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

None

Perfect on [001] imperfect on [100]

Mohs Hardness

6-6.53

2 10

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Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.

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

Optical Properties

Luster

Greasy, Pearly

Pleochroism

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

Dispersion

0.010.12

0.005 1

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Transparency

Transparent, Translucent

Translucent

Refractive Index

1.370-1.4701.678-1.758

1 3.25

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Optic Character

Crystal System

Triclinic

Birefringence

-99990.050

0 0.296

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Clarity

Transparent

Translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Excellent

Reproductive

Digestive

Psychology

Transformation

Self-Reflection

Healing

Emotional healing

Spiritual healing

Qualities Associated

Mystery

Self-Reflection

Black Opal Vs Astrophyllite Fracture

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

Compare Blue Gemstones

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Black Opal Vs Brucite

Black Opal Vs Caledonite

Black Opal Vs Astrophyllite Luster

A primary knowledge about Black Opal 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. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.