Definition: "aphthonite" refers to a type of fossil, specifically made from phosphorite, a mineral that has been transformed into glass by heat or pressure. It's one of several types of "glass" found in rock layers, resembling crystallized calcium carbonate. The term can also refer to the process of transforming a rock into a new form, much like a sculptor applies a paintbrush and dyes it to create a sculpture. Definition: - Phosphorite is a mineral that has been transformed into glass by heat or pressure. The result is called "aphthonite." - The term "aphthonite" refers to the process of transforming a rock into a new form, much like a sculptor applies paintbrush and dyes it to create a sculpture. In this context, "aphthonite" could refer to a type of fossil that has been transformed from a crystalline structure (a type of limestone) to a glass-like structure, often resembling the natural glass crystals.
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