Rocks and Minerals

15 Points Per Correct Answer - No time limit  

1. What common, pale yellow, metallic mineral has a greenish black streak and is used as a source of the mineral sulfur? Realgar Pyrite Cinnabar Pyrrhotite

2. Which native element, noted for its high specific gravity and metallic luster, is noted for its yellow color? Pyrite Gold Arsenopyrite Copper

3. What type of coal has a fixed carbon content of around 90 to 95 percent? Peat Bituminous Coal Anthracite Coal Lignite

4. What extremely common silicate mineral has a hardness of 7 on the Mohs scale and is most often found as well-formed crystals belonging to the hexagonal system? Quartz Topaz Beryl Zircon

5. From which other native mineral can arsenic be identified by its garlicky odor? Antimony Platinum Bismuth Silver

6. What type of rock is granite? Schist Metamorphic Igneous Sedimentary

7. Which mineral has perfect cleavage in six directions? Sodalite Diamond Sphalerite Fluorite

8. Marble is composed of only one of two possible minerals. What are they? Malachite or dolomite Calcite or dolomite Silica or calcite Quartz or malachite

9. What is the color of malachite? Yellow Red Blue Green

10. To what crystal system do the crystals of magnetite belong? Tetragonal Orthorhombic Isometric Monoclinic