Websterite vs Hyaloclastite Tekstur
tektur
clastic, granular, phaneritic, porphyritic
pyroclastic
werna
ireng kanggo werna abu-abu, bluish - werna abu-abu, greenish peteng - werna abu-abu, ijo, klawu rodok ijo cahya
coklat, grey, kuning
katon
dilapisi, banded, veined saha
kurang