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Mineral Unit Study Guide What 4 criteria make something as mineral? What is the hardest mineral on Earth? What is the softest mineral on Earth? In class we learned several ways to identify minerals. Describe each method. color hardness streak luster cleavage / fracture density Be able to identify Cleavage random fracture conchoidal fracture How much water must something displace to float? What are the characteristics of each of the 7 mineral families? For example-Label the following minerals with the correct family. Barite BaSO4 __________ Fluorite CaF2 __________ Asbestos Mg3Si2O5(OH)4 __________ Graphite C __________ Cinnabar HgS __________ Turgite 2Fe2O3 __________ Siderite FeCO3 __________ Name some uses for Graphite Be able to weigh an object with the spring scale. (in Newtons) Be able to calculate its weigh loss in water (in Newtons) What will you see in a mineral’s molecular formula if it is a hydrate? What are the 2 most common elements in the Earths atmosphere? What are the 2 most common elements in the Earths crust? Why coal is not a mineral? Be able to measure a mineral’s cleavage angle
