Vivianite

Nepheline

Vivianite Vs Nepheline

Vivianite

Nepheline

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1 Astrology

1.1 Origin

Southern and central Africa

Canada

1.2 Color

Blue, Green, Colorless

White, Reddish, gray, Brown, Brownish

1.3 Streak

White

1.4 For which Rashi?

Not Available

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

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

2.64-2.702.55-2.65

1 7.18

2.5 Fracture

(e.g. graphite).

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

2.6 Cleavage

{010} Perfect

[1010] Poor

2.7 Mohs Hardness

Not Available5-6

2 10

2.8 Chemical Composition

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

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

3 Optical Properties

3.1 Luster

Vitreous, Pearly

Vitreous, Greasy

3.2 Pleochroism

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

Not Available

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Transparent

Transparent, Translucent

3.5 Refractive Index

1.560-1.6401.529-1.547

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Not Available

Hexagonal

3.8 Birefringence

0.054-0.0750.003-0.004

0 0.296

3.9 Clarity

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

Vivianite Vs Nepheline Fracture

Fracture is an important parameter when you compare Vivianite and Nepheline Physical Properties. It is necessary to understand the significance of these properties, before you compare Vivianite Vs Nepheline 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 Vivianite is (e.g. graphite).. Nepheline fracture is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Subconchoidal.

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Vivianite Vs Nepheline Luster

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