[Jewelry making - Article 00987] - Re: [Orchid] Cabochon Backs: Polished or Unpolished

[Beth Rosengard]

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Hi Larry,

>     Are there other reasons for the backs of the cabs to be polished? 

    I've heard it said that matrix opals are best with polished backs
    (reduces the porosity of the ironstone or sandstone matrix; increases
    stability). Otherwise, no reasons I can think of (as long as the
    sitting edges of the cabs are beveled). Oh, one other possibility:
    they look better polished, which may make them easier for the stone
    cutter to sell. 

Beth
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