1 Definition
1.1 definisi
lignite punika coal brownish alus kang nuduhake ngambah tetanduran lan ing antarané coal bituminous lan peat
banget nggoleki rock fault grained kang dumadi saka matrik glassy sing asring ngandhut inclusions pecahan wall-rock.
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
1.3 Etimologi
saka french, kayu lignum latin + -ite1
saka pseudo- + tachylite, a rock glassy déning panas frictional ing bentet.
1.4 kelas
rocks sedimentary
rocks metamorphic
1.4.1 sub-kelas
awet rock, rock alus
awet rock, hard rock
1.5 kulawarga
1.5.1 group
ora ditrapake
ora ditrapake
1.6 kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque