For some reason, Nature's Aura misidentifies blocks as ores:

• Galacticraft's Tin Decoration Block
• Quark's Black Quartz Pillar

Additionally, it uses ores from multiple mods for the same ore, most notably:

• Thermal Foundation Copper+Tin Ore
• Railcraft Copper+Tin Ore

It is possible to ADD ores in the naturesaura.cfg file, but there is no option to remove blocks currently in the list. Please add this feature as this is unwanted behavior in modpacks.

They don't seem to have any oredictionary entries with prefix ore

IC2 Basalt also seems to be generated

Nature's Aura's ore generation identifies everything as an ore that is classified in the Ore Dictionary with the prefix ore, as this is an official Forge convention. It looks like, in your modpack, for some reason, the two blocks you mentioned first have this ore classification when they shouldn't.