1 Definition
1.1 definisi
coal iku combustible-ireng coklat ireng utawa sedimentary rock biasane kedadean ing parang tingkat ing lapisan sing disebut kasur coal
travertine punika Mineral dumadi saka kalsium karbonat dilapisi kawangun dening Deposition saka spring Waters
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
john peter Salley
Marcus vitruvius pollio
1.3 Etimologi
saka col term english lawas, kang wis temenan Mineral karbon fosil wiwit abad kaping 13
saka travertino italian jenis bangunan watu, saka tiburs, kata saka tibur (Tivoli), ing Italia
1.4 kelas
rocks sedimentary
rocks sedimentary
1.4.1 sub-kelas
awet rock, rock alus
awet rock, medium atose 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