Amethyst

Lapis lazuli

Amethyst Vs Lapis lazuli

Amethyst

Lapis lazuli

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1 Astrology

1.1 Origin

USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Color: violet, purple-violet, Hardness: 7, Refractive index: 1.54 1.55, Density: 2.65 2.66, Chemical composition: SiO2, Crystal structure: hexagonal, Lustre: vitreous, Origins: Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, USA, East Africa, Zambia, Namibia, Madagascar, India, Sri Lanka, Russia, Brazil, Uruguay, Bolivia, Argentina, Australia, Brazil, Uruguay, Bolivia, Argentina, Australia

Afghanistan

1.2 Color

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

Violet, Blue, White

1.3 Streak

White

Blue

1.4 For which Rashi?

Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius

Sagittarius

1.5 Planet

Not Available

Venus

1.6 Element of Planets

Water

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

Diana

Venus

1.10 Not to wear with

Not Available

1.11 Powers

Love, Courage

Protection, Courage

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

insoluble in common solvents

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.65

2.50-3.00

2.5 Fracture

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

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

2.6 Cleavage

Indiscernible

3,6

2.7 Mohs Hardness

5.5

2.8 Chemical Composition

SiO₂

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

3 Optical Properties

3.1 Luster

Vitreous

Vitreous, Greasy

3.2 Pleochroism

None

AbsentWalter Schumann

3.3 Dispersion

Albite

⊕

▶

▼

0.01

Rank: 27 (Overall)▶

None

Rank: N/A (Overall)▶

▲

Fluorite

⊕

▶

0.044 (Anglesite)

◀ ▶ ADD ⊕

3.4 Transparency

Transparent, Transparent to translucent

Opaque

3.5 Refractive Index

1.544-1.553

1.500-1.670

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

3.8 Birefringence

0.009

Not Available

3.9 Clarity

Transparent

Gemstones of the world (2001)

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

Amethyst Vs Lapis lazuli Fracture

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

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Amethyst Vs Lapis lazuli Luster

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