Holmquistite

Gahnospinel

Holmquistite Vs Gahnospinel

Holmquistite

Gahnospinel

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1 Astrology

1.1 Origin

Southern and central Africa

Sri Lanka

1.2 Color

Black, Blue, Violet

Blue

1.3 Streak

White

Not Available

1.4 For which Rashi?

Not Available

Sagittarius, Scorpio

1.5 Planet

Not Available

Pluto

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

Projective

1.9 Deities

Not Available

Hephaestus

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Money

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

2.95-3.133.65-4.55

1 7.18

2.5 Fracture

Not Available

ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

{210} Perfect

None, but may exhibit slight parting

2.7 Mohs Hardness

5-67.5-8

2 10

2.8 Chemical Composition

Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Strong in shades of violet when dark-colored.Anthony et al

AbsentWalter Schumann

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Transparent

Gemmological Tables (2004)

3.5 Refractive Index

1.622-1.6661.735-1.790

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Isometric

3.8 Birefringence

Not AvailableNot Available

0 0.296

3.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

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

Holmquistite Vs Gahnospinel Fracture

Fracture is an important parameter when you compare Holmquistite and Gahnospinel Physical Properties. It is necessary to understand the significance of these properties, before you compare Holmquistite Vs Gahnospinel 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. Gahnospinel fracture is ConchoidalArthur Thomas and Gemstones (2009).

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Holmquistite Vs Gahnospinel Luster

A primary knowledge about Holmquistite vs Gahnospinel 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. Holmquistite exhibits Vitreous luster. Gahnospinel, on other hand, exhibits Vitreous luster.