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    I gemstones

    None yet but this resource is continually being added to.

    J gemstones

    None yet but this resource is continually being added to.

    K gemstones

    Mis sold kyanite composite gemstone

    Kyanite

    pieces in resin, being sold as lab created apatite.

    L gemstones

    Glass coated labradorite

    Labradorite

    that has either been impregnated and coated with coloured glass or just coated with the coloured glass. 

    Lapis lazuli/quartz doublet

    Lapis lazuli/Quartz doublet

    a layer of clear quartz (rock crystal) has been glued onto a layer of lapis lazuli.

    Fake lapis lazuli/rutilated quartz doublet

    Lapis lazuli/rutilated quartz doublet

    colourless piece of glass glued to a blue piece of glass with bits of gold coloured foil in between.

    synthetic lapis lazuli

    "Synthetic" Lapis Lazuli

    A manmade material created by sintering (heating and compressing) calcite powder and pigmentation.

    Leland Blue

    is a glass-type material that's a by-product of iron smelting in Michigan, USA.

    Lunasoft gemstones

    Lunasoft

    Lucite with a soft, matt finish and a foiled back to reflect the light.

    M gemstones

    imitation malachite

    Malachite

    a resin imitation.

    Malachite composite

    Malachite

    this is chips of natural malachite in a metallic resin.

    Moissanite

    Moissanite

    Manmade gemstone commonly used to imitate diamond.

    What is a mood stone

    Mood Stone

    A manmade stone - a thin layer of thermotropic liquid crystals (which move away from or towards a heat source) underneath a protective transparent capping.

    Glass moonstone imitation

    Moonstone

    sold as Moonstone but this is glass.

    Moonstone/quartz doublet

    Moonstone/Quartz doublet

    has a layer of quartz glued to the top of a layer of moonstone.

    Dyed rainbow moonstone

    Rainbow Moonstone

    You can see the dye concentrated as darker lines in the surface reaching fractures. 

    Mother of pearl/quartz doublet

    Mother of Pearl/Quartz doublet

    has a layer of quartz glued to the top of a layer of mother of pearl.

    Mother of pearl/blue topaz doublet

    Mother of pearl/Blue Topaz doublet

    has a layer of blue topaz glued to the top of a layer of mother of pearl.

    N gemstones

    Nano or nanosital glass

    Nano or Nanosital Glass

    A manmade glass-ceramic material.

    O gemstones

    Aurora opal doublet

    Aurora opal/Quartz doublet

    Aurora opal is an imitation opal and this slice has a quartz cap glued on top.

    Opal composite

    Opal composite

    A creative opal composite that has a layer of boulder opal on top, then red pigment and textured foil, backed by ironstone.

    Opal composite

    Opal composite

    A cabochon of resin with chips of natural opal embedded within it.

    Opal/labradorite doublet

    Opal/Labradorite doublet

    Another creative gemstone that has a layer of opal on top of a labradorite backing. 

    Opal doublet

    No, it isn't really! It was sold as a quartz/onyx doublet but it has some sort of scary coloured foil between the top and bottom, imitating opal...

    Gilson opal cube and cabochon

    Gilson opal

    One of many different imitation opal materials found on the market, this one is described as having a ‘lizard skin’ or ‘chicken wire’ appearance. Available in a rainbow of colours!

    Slocum stones - imitation opals

    Opal imitations

    These imitation opals are glass cabochons (also known as Slocum Stones).

    Plastic imitation opal

    Opal imitation

    Plastic with foil in the middle (you can see a bubble trapped inside).

    Monarch opal

    Monarch opal

    A manmade imitation opal.

    Mosaic opal

    Mosaic opal

    This stone has fragments of natural opal in between a backing layer and a clear top layer.

    Opalite glass imitating opal gemstone

    Opalite

    an opalized glass used to imitate opal or moonstone.

    Dyed opal

    Opal - dyed

    I have seen some of these being sold as "Paraiba opal" which is misleading.

    Treated opal

    Opal - treated

    Opals may be "sugared" or "smoked" to darken the body colour.

    Imitation opals

    Other imitation opals...

    Other imitation opal names are Bello, Galaxy, Kyocera, Kyoto and Sterling.

    P gemstones

    Paste - red glass gemstone

    Paste

    Term used to describe manmade glass gemstones.

    Paua shell dyed

    Paua (Abalone) shell

    These are not natural colours but have been dyed and topped with a resin.

        

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