writing system (prior to them adopting runes), yet professor Tolkien never wrote these down, nor do we really know anything beyond the fact that these once were used by the dwarves.
So sadly, I can’t give you any dwarvish symbols at all, let alone regarding specific topics.
More information about this earlier writing system can be found inthis older ASK. This also includes a wonderful attempt by @striving-artist at creating an ideographic system by using Neo-Khuzdul words.
An example of an ideographic writing system made by @striving-artist