1 Definition
1.1 definisi
scoria punika igneous rock extrusive peteng-colored karo babak rongga gelembung-kaya KALUBÈRAN
lignite punika coal brownish alus kang nuduhake ngambah tetanduran lan ing antarané coal bituminous lan peat
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
1.3 Etimologi
saka pungkasan tengah english (denoting slag saka logam molten), saka skōria greek nolak, saka dung Skor
saka french, kayu lignum latin + -ite1
1.4 kelas
batuan beku
rocks sedimentary
1.4.1 sub-kelas
awet rock, medium atose rock
awet rock, rock alus
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained nggoleki, rock opaque
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque