tektur
amorf, glassy
porphyritic
werna
ireng, coklat, coklat peteng, grey, cahya kanggo werna abu-abu peteng
ireng, bluish - werna abu-abu, coklat, greenish peteng - werna abu-abu, ijo, grey
pangopènan
kurang
kurang
kekiatan
awet
awet
banyu tahan
✔
✘
✔
✘
ngeruk tahan
✔
✘
✔
✘
rereged tahan
✔
✘
✔
✘
angin tahan
✔
✘
✔
✘
asam tahan
✔
✘
✔
✘
katon
veined utawa pebbled
kurang, Banded lan foilated