Yes and it’s commonly needed to walk several thousand blocks, picking up Rocks, encountering 10 or more Cassiterite Veins, just to search for one of the rarer Veins, like Chromite or Tungsten.
By the way I look for Bedrock Veins by looking at Journeymap. Bedrock Veins generate a cluster of Rocks denser than normal and is somewhat easy to spot on the map.
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