Lapis lazuli

Malachite

Lapis lazuli Vs Malachite

Lapis lazuli

Malachite

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1 Astrology

1.1 Origin

Afghanistan

Southern and central Africa, green

1.2 Color

Violet, Blue, White

Green

1.3 Streak

Blue

Green

1.4 For which Rashi?

Sagittarius

Capricorn, Scorpio, Capricorn, Scorpio, Capricorn, Scorpio

1.5 Planet

Venus

1.6 Element of Planets

Water

Earth

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Receptive

1.9 Deities

Venus

Freyja

1.10 Not to wear with

Not Available

1.11 Powers

Protection, Courage

Protection

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.50-3.003.25-4.10

1 7.18

2.5 Fracture

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

Conchoidal, Conchoidal, Gemstones (2009), Uneven

2.6 Cleavage

3,6

Perfect on { 2 01} fair on {010}

2.7 Mohs Hardness

5.53.5-4

2 10

2.8 Chemical Composition

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

Cu₂CO₃(OH)₂

3 Optical Properties

3.1 Luster

Vitreous, Greasy

Adamantine, Vitreous, Silky, Fibrous

3.2 Pleochroism

AbsentWalter Schumann

Not Available

3.3 Dispersion

NoneNone

0.007 1

3.4 Transparency

Opaque

3.5 Refractive Index

1.500-1.6701.655-1.909

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

monoclinic

3.8 Birefringence

Not Available0.254

0 0.296

3.9 Clarity

Gemstones of the world (2001)

Gemmological Tables (2004) More from other references

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 Malachite Fracture

Fracture is an important parameter when you compare Lapis lazuli and Malachite Physical Properties. It is necessary to understand the significance of these properties, before you compare Lapis lazuli Vs Malachite 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. Malachite fracture is Conchoidal, Conchoidal, Gemstones (2009) and Uneven.

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Lapis lazuli Vs Malachite Luster

A primary knowledge about Lapis lazuli vs Malachite 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. Malachite, on other hand, exhibits Adamantine, Fibrous, Silky and Vitreous luster.