Gypsa

noun

Definitions

Noun
  1. 1
    plural of gypsum form-of, plural

    "When a ſmall quantity of any gypſum is melted together with borax, the glaſs becomes colourleſs and tranſparent; but I have found ſome ſorts of alabaſter and ſparry gypſa that, when melted in ſome quantity with borax, yield a fine yellow tranſparent colour, reſembling that of the beſt topaſes."

Etymology

From Latin gypsa, plural of gypsum.

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