I've noticed that with the stone structures showing mineral veins, the mineralogy report will often have the "Nearby Mines output valuable minerals" line listed either above or below the material that can be extracted, and it is not consistent amongst all materials. Explicitly I've noticed the pattern goes as follow for the different materials: "...output valuable minerals" text above extraction material: Native Gold, Iron, Chalk. "...output valuable minerals" text below extraction material: Copper, Zinc, Coal. I've also noticed that sometimes even though a mineralogy report has been done on a stone structure, it will still have the text "Requires Mineralogy Report" showing, and the subsequent text explaining how to get this report from a naturalist's office. When this happens the material that can be extracted will still be listed. I've included some images showing the issues.