lodestone
nounUS /ˈloʊdˌstoʊn/
Etymology First attested from 1515, from Middle English lode (“guide”) + stone. From use as a guide tool by mariners. See also: lodestar.
1
Obsolete The mineral magnetite.
2
Any naturally occurring magnet.
3
Broadly The focus of one's attraction or attention
- an ideological lodestone