I've tried to convert the default json to use geolosys ores, but the mod somehow doesn't read the types properly

the json: https://pastebin.com/PpDgnhv4
Screenshot of the list command output: http://imgur.com/a/qcHJw

minecraft 1.12
Bedrock Ores-MC1.12-1.0.0.6.jar

Pretty sure that's because it should be "variant" not "type" as the property name: see the right bottom line in the debug overlay where it says "variant: azurite"? That's what needs to go into the JSON. You should also have a couple of warnings in the logs.

I suppose it might make more sense to just drop entries where property parsing failed, and add a command to list the ones that errored. I'll look into that tomorrow.