Synthetic Spinel | Gemopedia

Some gems, like spinel, are highly coveted but rare to find, much less in the sizes and quality people dream of owning. Laboratory created jewels offer you the best of both worlds. You get the beauty of a beloved, rare gemstone, but at a budget friendly price. The term synthetic refers to a man-made material with a natural counterpart. The synthetic crystal replicates the chemical, optical and physical properties of the natural crystal with little or no variation. Synthetic spinel was once a popular diamond simulant. Just like natural gemstones, each full production of Jewelry Television's lab created spinel gemstones is quality graded to ensure excellence.
Alternate
Names
Flux-Grown Synthetic Spinel, Alumag, Corundolite, Lustergem, Magalux, Radient, Strongite ,Wesselton, Simulated Diamond, Aquagem, Rozircon, Berylite, Dirigem, Perigem, Emerada, Erinide
Colors
Slightly Purplish Red
, Medium Dark To Dark Blue
, Very Slightly Violet Blue

Synthetic Spinel Classification

Common Name

Synthetic Spinel

Species

Synthetic Spinel

Variety

Flux-Grown Synthetic Spinel

Colors

slightly purplish red, medium dark to dark blue, very slightly violet blue

Alternate Names

flux-grown synthetic spinel, Alumag, Corundolite, Lustergem, Magalux, Radient, Strongite ,Wesselton, Simulated Diamond, Aquagem, Rozircon, Berylite, Dirigem, Perigem, Emerada, Erinide

Gemstone Groups

Key Separations

Magnification, spectrum and RI

Comments

Colorless variety trade names: Alumag, Corundolite, Lustergem, Magalux, Radient, Strongite ,Wesselton, Simulated DiamondColored variety trade names: Aquagem, Rozircon, Berylite, Dirigem, Perigem, Emerada, ErinideMisnomers: Brazilian Emerald, synthetic aquamarine, synthetic birthstone varieties, synthetic peridot, Hope Sapphire, Jourado Diamond.

Synthetic Spinel Optical Properties

Transparency

Transparent To Opaque

Refractive Index

1.719 Tolerance: (+0.003/-0.003)

Birefringence

Optic Character

NA

Optic Sign

NA

Polariscope Reaction

singly refractive, commonly with ADR

Fluorescence

SWUV: Red:weaker slightly orangy red Blue: weaker to moderate slightly chalky red to reddish purple
LWUV: Red: Strong purplish to slightly orangy redBlue: weak to moderate slightly chalky red to reddish purple

CCF Reaction

Blue: red to orangy red

Pleochroism

Dispersion

Strength: weak fire Value: 0.02

Comments

Synthetic Spinel Chemistry & Crystallography

Chemical Name

magnesium aluminum oxide

Chemical Formula

MgAl2O4

Synthesis

flux-melt

Crystal System

Cubic

Classification

Oxide

Nature

Synthetic

Crystallinity

Crystalline

Comments

Synthetic Spinel Characteristic Physical Properties

Hardness

8

Streak

Specific Gravity

3.58-3.64

Toughness

Good To Excellent

Inclusions

Flux-grown spinel typically has flux residue inclusions that can be orangy brown to black in color. Some flux inclusions are singular but others can be mistaken for fingerprint inclusions. Stones might contain metallic platelets from the platinum crucible. Dark blue stones might show a red flash under penlight due to cobalt coloring agent.

Luster

Subadamantine To Vitreous

Stability

Very Good

Fracture

Conchoidal

Cleavage

None

Comments

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