tekstur
phaneritic
foliated
warna
kehijauan gelap - abu-abu
biru, kebiruan - abu-abu, ungu, nuansa biru
pemeliharaan
kurang
kurang
daya tahan
tahan lama
tahan lama
tahan air
✔
✘
✔
✘
tahan gores
✔
✘
✔
✘
tahan noda
✔
✘
✔
✘
tahan angin
✔
✘
✔
✘
tahan asam
✔
✘
✔
✘
penampilan
kasar dan mengkilap
kusam dan banded