hyaloclastite iku sawijining ongko saka nggoleki, lebu glassy kawangun dening kontak dadakan saka panas, magma manéka warna takson lan banyu kadhemen utawa endhepan banyu-kebak
novaculite punika kandhel, hard, nggoleki-grained, siliceous rock metamorpic kang jinis chert sing ngilangi karo rengat conchoidal
rock grained nggoleki, rock opaque
rock grained nggoleki, rock opaque