[pfd1986]

Great name! (Portuguese word for 'pencil')

[jszymborski]

Huh, here I was just assuming it was a reference to "lapis lazuli" but seeing as lua is Portuguese for moon, "pencil" makes most sense here.

Thanks!

[qsort]

It's Latin for "stone". Also used in Italian as a regional/alternative word for "pencil".

[wonks]

As in "lua rock"?

[Lalabadie]

Moon rock, I suppose