The very common mineral shown in this photog... The very common mineral shown in this photograph is commonly a pink- to cream-colored mineral with wavy, light-colored lines. It does not effer What mineral is it? Stephen J. Reynolds Multiple Choice garnet
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Characteristics of Mineral #5: can be black, brown, silvery gray, or earthy red, but consistently has a red streak; can have metallic or earthy luster; is nonmagnetic; and does not effervesce. What is this mineral? a) Galena b) Magnetite c) Pyrite d) Hematite Mineral #5 is shown here with another mineral with a similar chemical composition. What are these two minerals called?
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10. During the 1800's, miners can identify real gold from pyrite through biting the surface of the mineral. If a bite mark is exhibited, then the said mineral is considered real gold. What property is tested in this scenario? A cleavage C. luster B. hardness D. streak color 11. What is a carbonate mineral that occurs in a different crystal form and is less common than either calcite or dolomite? A. aragonite C. gypsum B. calcite D. silica 12. What constitutes the size, shape and arrangement of mineral grains in a tock? A cement C. porosity B. permeable origin D. texture 13. Which of the following is not a characteristic of a mineral? A. crystal structure C. organic B. naturally occurring D. solid 14. What refers to the tendency for a mineral to break along flat surfaces? A. cleavage C. ductility B. hardness D. tenacity 15. What is the solid form of a mineral produced by a repeating pattern of atoms? A. crystal C. element B. density D. fracture
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Talc (Mg3Si4O10(OH)2) is commonly used in various cosmetics. What physical properties of talc make it an ideal ingredient in makeup? As you saw in Exercise 1, corundum (Al2O3) is a very hard mineral. Based on your results, what other mineral from the exercise could be useful as an abrasive, such as in sand paper? Marble is a type of rock that is composed primarily of calcium carbonate minerals, such as calcite (CaCO3). It is a popular choice for decorative building stones, monuments, and sculptures. In Exercise 1, you observed how calcite reacted to a drop of acetic acid. Based on this observation, why do you think people who care for monuments and sculptures made of marble are concerned about acid rain?
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