tektur
glassy, massive, porphyritic, scoriaceous, trachytic, vesicular
aphanitic kanggo porphyritic
werna
ireng, coklat, cahya kanggo werna abu-abu peteng
bluish - werna abu-abu, coklat, grey, cahya kanggo werna abu-abu peteng
pangopènan
kurang
kurang
kekiatan
awet
awet
banyu tahan
✔
✘
✔
✘
ngeruk tahan
✔
✘
✔
✘
rereged tahan
✔
✘
✔
✘
angin tahan
✔
✘
✔
✘
asam tahan
✔
✘
✔
✘
katon
atos lan kurang
vesicular