1592953233000 1312632483000 term-39784 1616539445938 1312635345000 1616289794965 adlib fitz-online adlib-term-39784 1c844ec1-b103-387f-b3c4-b4b83c3a297e 2 1 scope note A dense, hard, dark brown-to-black volcanic igneous rock, consisting of feldspar and mafic minerals such as augite or olivine. M.MT.AFU.AFU.AFU.ERE.AFU.AFU.AFU.ALO.AFU 1 code M.MT.AFU.AFU.AFU.ERE.AFU.AFU.AFU.ALO.AFU 1 basalt reference term-37688 adlib-term-37688 2f67ee76-c420-3b6a-a0c9-c7324b7f7456 basic igneous rock basalt term