Alunite

Opal

Alunite Vs Opal

Alunite

Opal

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1 Astrology

1.1 Origin

Australia, Italy

Ethiopia

1.2 Color

Yellow, Red, Reddish, Brown, Colorless, White, Yellow, Red, Reddish, Brown, Colorless, White, gray, White, gray, Reddish, White, gray, Reddish, White, gray, Reddish

Yellow, White, Red, Brown, Blue

1.3 Streak

White

1.4 For which Rashi?

Not Available

Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio

1.5 Planet

Not Available

Mercury

1.6 Element of Planets

Not Available

Earth, Air, Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

Projective, Receptive

1.9 Deities

Not Available

Cupid

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Astral Projection, Psychicism

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Brittle

BrittleWalter Schumann

2.2 Solubility

Soluble

hot salt water

2.3 Durability

Not Available

2.4 Specific Gravity

2.6-2.91.98-2.25

1 7.18

2.5 Fracture

Conchoidal, Uneven

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle

2.6 Cleavage

On {0001}, perfect

None

2.7 Mohs Hardness

3.5-45-6.5

2 10

2.8 Chemical Composition

KAl3(SO4)2(OH)6

SiO₂ · nH₂O

3 Optical Properties

3.1 Luster

Vitreous, Pearly

3.2 Pleochroism

Not Available

None

3.3 Dispersion

NANone

0.007 1

3.4 Transparency

Not Available

Transparent, Translucent, Transparent to translucent

3.5 Refractive Index

1.5721.37-1.52

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

3.8 Birefringence

0.020Not Available

0 0.296

3.9 Clarity

Not Available

Transparent

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Alunite Vs Opal Fracture

Fracture is an important parameter when you compare Alunite and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Alunite Vs Opal 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 Alunite is Conchoidal and Uneven. Opal fracture is Brittle, Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references.

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Alunite Vs Opal Luster

A primary knowledge about Alunite vs Opal 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. Alunite exhibits Pearly and Vitreous luster. Opal, on other hand, exhibits Pearly and Vitreous luster.