Lapis lazuli

Opal

Lapis lazuli Vs Opal

Lapis lazuli

Opal

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1 Astrology

1.1 Origin

Afghanistan

Ethiopia

1.2 Color

Violet, Blue, White

Yellow, White, Red, Brown, Blue

1.3 Streak

Blue

White

1.4 For which Rashi?

Sagittarius

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

1.5 Planet

Venus

Mercury

1.6 Element of Planets

Water

Earth, Air, Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Receptive

Projective, Receptive

1.9 Deities

Venus

Cupid

1.10 Not to wear with

Not Available

1.11 Powers

Protection, Courage

Astral Projection, Psychicism

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

BrittleWalter Schumann

2.2 Solubility

Not Available

hot salt water

2.3 Durability

Not Available

2.4 Specific Gravity

2.50-3.001.98-2.25

1 7.18

2.5 Fracture

Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

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

2.6 Cleavage

3,6

None

2.7 Mohs Hardness

5.55-6.5

2 10

2.8 Chemical Composition

The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)₈Al₆Si₆O₂₄(S,SO)₄

SiO₂ · nH₂O

3 Optical Properties

3.1 Luster

Vitreous, Greasy

Vitreous, Pearly

3.2 Pleochroism

AbsentWalter Schumann

None

3.3 Dispersion

NoneNone

0.007 1

3.4 Transparency

Opaque

Transparent, Translucent, Transparent to translucent

3.5 Refractive Index

1.500-1.6701.37-1.52

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

3.8 Birefringence

Not AvailableNot Available

0 0.296

3.9 Clarity

Gemstones of the world (2001)

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

Lapis lazuli Vs Opal Fracture

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

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Lapis lazuli Vs Opal Luster

A primary knowledge about Lapis lazuli 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. Lapis lazuli exhibits Greasy and Vitreous luster. Opal, on other hand, exhibits Pearly and Vitreous luster.