Home
Random
Log in
Settings
Donations
About Wiktionary
Disclaimers
Search
alum slate
Language
Watch
Edit
English
edit
Noun
edit
alum
slate
(
geology
)
A slate consisting mainly of
clay
,
iron
pyrites
, and
coaly
matter
, from which alum is obtained.
Categories
:
English lemmas
English nouns
English countable nouns
English nouns with unknown or uncertain plurals
English multiword terms
en:Geology
Hidden category:
Pages with 1 entry