1 Definition
1.1 definisi
kapur iku alus, putih, watu gamping powdery dumadi utamané saka meriam fosil saka foraminifers
obsidian punika kaca vulkanik alami kawangun minangka rock igneous extrusive. diprodhuksi nalika lahar felsic extruded saka gunung mbledhos ndingin kanthi cepet karo wutah kristal minimal
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
1.3 Etimologi
saka lawas kapur english cealc, jeruk, plester, krikil, asal saka basa Yunani khalix krikil cilik, ing english ditransfer menyang opaque, putih, watu gamping alus
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
1.4 kelas
rocks sedimentary
batuan beku
1.4.1 sub-kelas
awet rock, rock alus
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained nggoleki, rock opaque
rock opaque