tekstur
foliated
phaneritic
warna
biru, kebiruan - abu-abu, ungu, nuansa biru
hitam, coklat, cahaya untuk abu-abu gelap, putih
pemeliharaan
kurang
kurang
daya tahan
tahan lama
tahan lama
tahan air
✔
✘
✔
✘
tahan gores
✔
✘
✔
✘
tahan noda
✔
✘
✔
✘
tahan angin
✔
✘
✔
✘
tahan asam
✔
✘
✔
✘
penampilan
kusam dan banded
banded dan foilated