Is glycerin a mineral oil

Answer 1

yes glycerin is a mineral oil

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answer 2 In Geology dictionary, you'll find a mineral defined as a solid ... . So glycerine (also spelt glycerin) cannot be a mineral. (But the term 'mineraloid' is coined to take into account Mercury.)

In days old, things were defined as Mineral, Vegetable, Animal or Abstract. Which leaves a lot to be desired as a classification system. But things coming out of the ground were considered as mineral, e.g. Mineral turpentine, to distinguish it from Vegetable turpentine. (= Turpentine made by steam distillation.)

Similarly with other oils and fats. Glycerine was commonly derived from animal fat, by pressing it in a fabric press; where the glycerine extruded as a clear colourless liquid. And is further refined.

And these days, glycerine may be made from petroleum oil feedstock.