Featured Perthshire paperweight. What do I call this flaw (??) inside glass

Discussion in 'Pottery, Glass, and Porcelain' started by Lucille.b, Sep 6, 2022.

  1. Lucille.b

    Lucille.b Well-Known Member

    Is there a term for something like this. What would I call that black piece inside the glass. Would it be considered a flaw?


    Perfect from the top:

    per1.jpg


    Any term for something like this black spot inside?

    per5.jpg

    per1b.jpg
     
    Lucille.b, Sep 6, 2022
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    judy, kyratango, bercrystal and 2 others like this.
  2. *crs*

    *crs* Hippy Dippy Antiquer

    inclusions?
     
    *crs*, Sep 6, 2022
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    judy, bercrystal and moreotherstuff like this.
  3. laura9797

    laura9797 Well-Known Member

    looks like carbon....
     
    laura9797, Sep 6, 2022
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    judy likes this.
  4. Lucille.b

    Lucille.b Well-Known Member

    Thank you CRS, and Laura.

    I think I'll go with "inclusions" maybe! :)

    Would this be considered a flaw?
     
    Lucille.b, Sep 6, 2022
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    *crs* and judy like this.
  5. Ownedbybear

    Ownedbybear Well-Known Member

    Frit inclusion. Some furnaces, like Caithness, would class it as a second.
     
    Ownedbybear, Sep 7, 2022
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    kyratango, Lucille.b, *crs* and 2 others like this.
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