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  1. #1

    Default Hardness of imitation pearl?

    I know that moh's hardness of cultured pearl is 2.5-4.5
    How about the hardness of different type of imitation pearl(plastic and glass)?
    I want to distinguish the imitation pearl by moh's hardness test.

  2. #2
    Super Moderator Senior Pearl-Guide.com Pearl Expert jshepherd's Avatar
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    Plastic would be softer than a pearl and glass harder. You can scratch a pearl with glass, but you shouldn't be able to with typical plastic. I believe glass is around 5 on Mohs scale.


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  3. #3
    Pearl Scholar Senior Pearl-Guide.com Pearl Expert pattye's Avatar
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    Imitation pearls, no matter if the center is glass or plastic, is coated with layers of resin or paint giving the pearl-like look, and that can be scratched.
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  4. #4
    Pearl Enthusiast Senior Pearl-Guide.com Pearl Expert Pearl Dreams's Avatar
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    High quality imitations like Majorica brand are a bit more more scratch resistant than real pearls.

    But there are better ways to tell imitation pearls from real ones.

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