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L. QUESTIONS ON DISPLAY SPECIMENS, 15. What is the white mineral surrounding galena in the ore sample? 16. Galena is the primary ore for what metal? 17. Azurite is an ore for what metal? 18. What are two tests for azurite? 19. What is the source of the chalcopyrite on display? (= Where was it collected?) 20. Chalcopyrite is an ore for what metal? 21. What is one place where very large sheets of mica may be formed/found? 22. What mineral forms the matrix surrounding gold in the smaller specimen? 23. What mineral is sandwiched between large sheets of muscovite mica in the display specimen? a 24. What metal causes the purple color of amethyst? 25. Amethyst is actually a colored form of what common (and fairly worthless) mineral? 26. Where is the only place (state) in North America where copper is found as a native element? 27. Herkimer diamonds are an exceptionally clear form of what mineral? 28. The two elements which are arranged differently in cubic pyrite crystals are and L. QUESTIONS ON DISPLAY SPECIMENS, 15. What is the white mineral surrounding galena in the ore sample? 16. Galena is the primary ore for what metal? 17. Azurite is an ore for what metal? 18. What are two tests for azurite? 19. What is the source of the chalcopyrite on display? (= Where was it collected?) 20. Chalcopyrite is an ore for what metal? 21. What is one place where very large sheets of mica may be formed/found? 22. What mineral forms the matrix surrounding gold in the smaller specimen? 23. What mineral is sandwiched between large sheets of muscovite mica in the display specimen? a 24. What metal causes the purple color of amethyst? 25. Amethyst is actually a colored form of what common (and fairly worthless) mineral? 26. Where is the only place (state) in North America where copper is found as a native element? 27. Herkimer diamonds are an exceptionally clear form of what mineral? 28. The two elements which are arranged differently in cubic pyrite crystals are and