A waxy mineral or substance with a wax-like appearance; historically, a type of mineralized fossil or amber-like material.
From Latin cera (wax) + Greek -lithos (stone). The term was applied in mineralogy to describe rocks and minerals with a waxy luster or appearance.
Cerolite sounds like it should be a specific mineral, but it's actually a grab-bag term miners used for anything shiny and waxy they found underground—showing how mineral naming was pretty messy before modern chemistry.
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