fritted rock

fritted rock: 1) Геология: обожжённая или сплавленная порода, обожжённая порода, сплавленная порода

2) Макаров: оплавленная порода

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Lead glass — Swarovski flacon. Lead glass is a variety of glass in which lead replaces the calcium content of a typical potash glass.[1] Lead glass contains typically 18–40 weight% lead(II) oxide (PbO), while modern lead … Wikipedia
industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… … Universalium

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