[-genesiscomb. form, Greek -γενεσία] that department of mineralogy which treats of the formation of stones; also, the formation of rock.
ΚΠ
1828 N. WebsterAmer. Dict. Eng. Lang.Lithogenesy, the doctrine or science of the origin of minerals composing the globe, and of the causes which have produced their form and distribution. Dict. Nat. Hist.