1 Definition
1.1 definisi
picrite iku macem-macem dhuwur-Magnesium basalt olivine sing sugih banget ing olivine Mineral
rhyolite punika rock igneous nggoleki-grained kang sugih ing silika
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
Dingertèni
Ferdinand von Richthofen
1.3 Etimologi
saka pikros greek pait + -ite, abad ka-19
saka rhyolit german, saka stream lahar greek rhuax + watu lithos
1.4 kelas
1.4.1 sub-kelas
awet rock, hard rock
awet rock, hard rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained nggoleki, rock opaque
rock grained coarse, rock opaque