1 Definition
1.1 definisi
lignite punika coal brownish alus kang nuduhake ngambah tetanduran lan ing antarané coal bituminous lan peat
theralite punika rock hylocrystalline igneous plutonic dumadi saka augite, olivine, plagioclase calcic lan nepheline
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
1.3 Etimologi
saka french, kayu lignum latin + -ite1
saka basa Yunani kanggo nguber
1.4 kelas
rocks sedimentary
batuan beku
1.4.1 sub-kelas
awet rock, rock alus
awet rock, hard rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque