tekstur
foliated
klastik, piroklastik
warna
biru, kebiruan - abu-abu, ungu, nuansa biru
coklat, Abu-abu, kuning
pemeliharaan
kurang
lebih
daya tahan
tahan lama
tahan lama
tahan air
✔
✘
✔
✘
tahan gores
✔
✘
✔
✘
tahan noda
✔
✘
✔
✘
tahan angin
✔
✘
✔
✘
tahan asam
✔
✘
✔
✘
penampilan
kusam dan banded
kusam, vesikular dan foilated