Multiple choice Which of the following is a pair of copper ores? Hematite and siderite Azurite and malachite Manganite and pyrolusite Limonite and pyrolusite Malachite and siderite Reveal answer Fill a bubble to check yourself B Correct answer Explanation Azurite, Cu3(CO3)2(OH)2: Copper ore Malachite, Cu2CO3(OH)2: Copper ore