Lapis lazuli

Vivianite

Lapis lazuli Vs Vivianite

Lapis lazuli

Vivianite

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Astrology

Origin

Afghanistan

Southern and central Africa

Color

Violet, Blue, White

Blue, Green, Colorless

Streak

Blue

White

For which Rashi?

Sagittarius

Planet

Venus

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Venus

Not to wear with

Powers

Protection, Courage

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.50-3.002.64-2.70

1 7.18

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Fracture

Uneven-Conchoidal, ConchoidalWalter Schumann

Cleavage

3,6

{010} Perfect

Mohs Hardness

5.5-9999

2 10

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Chemical Composition

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

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Optical Properties

Luster

Vitreous, Greasy

Vitreous, Pearly

Pleochroism

Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue

Dispersion

-0.03

0.005 1

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Transparency

Opaque

Transparent

Refractive Index

1.500-1.6701.560-1.640

1 3.25

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Optic Character

Crystal System

Trigonal

Birefringence

-99990.054-0.075

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Reproductive

Digestive

Psychology

Wisdom

Hope

Healing

Emotional healing

Qualities Associated

Inner Truth

Transformation

Lapis lazuli Vs Vivianite Fracture

Fracture is an important parameter when you compare Lapis lazuli and Vivianite Physical Properties. It is necessary to understand the significance of these properties, before you compare Lapis lazuli Vs Vivianite 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 Uneven-Conchoidal and ConchoidalWalter Schumann.

Compare Gems for Sagittarius

Lapis lazuli Vs Ruby

Lapis lazuli Vs Smoky Quartz

Lapis lazuli Vs Sodalite

Lapis lazuli Vs Vivianite Luster

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