SimpleOres Fabric is an unofficial port of the original Forge mod by skrallexy to Fabric/Quilt that adds 4 new ores to the base game: Tin, Mythril, Adamantium and Onyx. All except Onyx can be found in the overworld, while Onyx can be found only in the Nether.
Each ore has its own unique properties, armor and tool sets, and more.
SimpleOres Fabric does not add copper ore or ingots to the game, as vanilla has added them. However, since vanilla did not add copper tools or armor, SimpleOres Fabric still has them (before 1.21.9). SimpleOres Fabric's ores drop raw metal, like vanilla ores, except for onyx ore, which drops the gem, of course.
Copper doors (before 1.21), mythril, tin, adamantium and onyx bars, doors, bricks, and brick stairs are added too.
SimpleOres Fabric requires Fabric API
The textures are those from the original mod, you should take a look ;)
The original Minecraft Forum thread is here. The original mod was by AleXndrTheGr8st, aka Skrallexy. Sinhika is the current off-and-on maintainer for Forge. The current code of this project is also licensed under LGPL 3.0, so go wild, modpack makers!
If you want to add support of SimpleOres Fabric to your mod, crushed and powder versions of ores are available natively, Support of Energized Power has been added in 1.3.1 (and 1.3.2 for 1.20.1+) !
