Synthetic Spinel | Gemopedia

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 offers you the best of both worlds. You get the beauty of a beloved, rare gemstone at a high quality, but at a budget friendly price.
Alternate
Names
Flame-Fusion Synthetic Spinel, Alumag, Corundolite, Lustergem, Magalux, Radient, Strongite ,Wesselton, Simulated Diamond, Aquagem, Rozircon, Berylite, Dirigem, Perigem, Emerada, Erinide
Colors
Red
, Yellow
, Brown
, Light To Dark Green
, Grayish Green
, Yellowish Green
, Pale Pink To Pink
, Light To Dark Blue
, Greenish Blue
, Violet
, Mauve
, Orange
, Colorless

Synthetic Spinel Classification

Common Name

Synthetic Spinel

Species

Synthetic Spinel

Variety

Flame-Fusion Synthetic Spinel

Colors

red, yellow, brown, light to dark green, grayish green, yellowish green, pale pink to pink, light to dark blue, greenish blue, violet, mauve, orange, colorless

Alternate Names

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

Gemstone Groups

Key Separations

refractive index, SR nature commonly with ADR cross hatch effect, magnification, color filter and spectrum and possible fluorescence. An accurate RI reading can distinguish natural from synthetic spinel, which usually has a higher RI.

Comments

Colorless variety trade names: Alumag, Corundolite, Lustergem, Magalux, Radient, Simulated Diamond, Strongite ,WesseltonColored variety trade names: Aquagem, Berylite, Dirigem, Emerada, Erinide, Perigem, RozirconMisnomers: synthetic aquamarine, synthetic peridot, synthetic birthstone varieties, Jourado Diamond, Brazilian Emerald, Hope SapphireRed stones: RI 1.722 (+/-0.003) and SG 3.59 (+/-0.001)Pink, blue, violet, colorless and green stones: RI 1.728 (+0.012/-0.008) and SG 3.64 (+0.02/-0.12)

Synthetic Spinel Optical Properties

Transparency

Transparent To Opaque

Refractive Index

1.722-1.728 Tolerance: +0.012/-0.008

Birefringence

0-0

Optic Character

NA

Optic Sign

NA

Polariscope Reaction

singly refractive, commonly with ADR (SR-ADR)

Fluorescence

SWUV: Colorless: moderate to strong chalky blue or strong greenish blueLight blue: chalky blueMedium blue: strong bluish whiteDark blue: strong mottled blueLight green: moderate yellowish greenDark green: strong greenish whiteColor change: weak chalky yellowYellowish green: strong yellowish greenRed: weak to moderate redPink: inert
LWUV: Colorless: sometimes weak greenLight blue: weak to moderate orangeMedium blue: strong redDark blue: strong redLight green: strong yellowish greenDark green: strong purplish redColor change: moderate dull redYellowish green: strong yellowish greenRed: strong redPink: inert

CCF Reaction

synthetic blue spinel produes a strong red reaction

Pleochroism

Dispersion

Strength: weak fire Value: 0.02

Comments

Synthetic Spinel Chemistry & Crystallography

Chemical Name

magnesium aluminum oxide

Chemical Formula

MgAl2O4

Synthesis

flame fusion

Crystal System

Cubic

Classification

Oxide

Nature

Synthetic

Crystallinity

Crystalline

Comments

Synthetic Spinel Characteristic Physical Properties

Hardness

8

Streak

white

Specific Gravity

3.57-3.7 Range: +0.10/-0.03

Toughness

Good To Excellent

Inclusions

Flame-fusion spinel may contain thread like or angular gas bubbles. Red stones might show curved striae growth patterns or color banding but this is rare. Strongly saturated blue stones might show red flashes due to cobalt as coloring agent.

Luster

Subadamantine To Vitreous

Stability

Very Good

Fracture

Conchoidal

Cleavage

None

Comments

JTV on Google+
0 Items
My Wish List
Close
Item
Description
Qty.
Price


Estimated Order Total:
0
Total Due Today:
0
Close
Item
Description
Qty.
Price


Page of 1