University:
University of Scranton
Course:
PHYS 102 | Earth Science
Academic year:

2023
Views:

487

Pages:

3
Author:

Anna Mccarthy

1. Identify the following substances as mineral, mineral simulant, or nonmineral. a. Mineral: gypsum, corundum, aragonite, graphite b. Mineral Simulant: hematine, cubic zirconia c. Non-Mineral: menthol, sugar, DNA, glass 2. Not all crystals look as perfect as those in a textbook photo. This photo and sketch show a clump of quartz crystals dug out of reddish clay. Even though the crystals are not clean and clear, you can still see some distinctive flat planes that are crystal faces. Note that different parts of a single crystal may have different forms. Some resemble the side of a pyramid. Label the figure by dragging the appropriate term to the appropriate target. a. (left to right) clay residue on crystal face, side faces of the crystal, pyramidal faces of the crystal 3. Crystals come in a variety of shapes; each shape has a geometric name. Based on the descriptions provided of representative minerals, match the mineral name to the corresponding mineral image. a. (top to bottom) calcite, diamond, quartz, garnet, halite 4. Some minerals can be identified based on their distinctive crystal shape. Label the minerals with the correct name. a. (left to right) halite, quartz, calcite (blue) 5. Drag and drop the mineral names to the correct position on this graph of the Mohs hardness scale. (Note that in this graph the actual hardness is plotted on the vertical axis.) a. (left to right) talc, quartz, diamond 6. Match the adjectives for luster with the appropriate specimen. a. (top to bottom) glassy, metallic, earthy 7. Label the types of minerals and their corresponding types of fractures. The leader lines indicate fractures. a. (left to right) irregular fracture, garnet b. (left to right) quartz, conchoidal fracture 8. Match each ion configuration with the corresponding geometric shape. a. (left to right) cubic, tetragonal, octahedral 9. Label each of the following minerals with the correct mineral class. a. 10. Classify the silicate groups based on how many oxygen atoms are shared by each silicon-oxygen tetrahedron with a neighboring siliconoxygen tetrahedron. To see a larger version of the image, scroll down. a. (top): 0, 2, 2 or 3 b. (bottom): 3, 4 11. These photomicrographs show details of quartz grains in three different classes of rock. Based on the shape of these grains, and contacts among them, classify each sample as igneous, metamorphic, or sedimentary. Drag the rock class to the correct image. a. (left to right) sedimentary, igneous, metamorphic 12. Sort the images of rocks below into the three different categories of rocks. a. 13. Sort the following rock examples into their appropriate rock group based on texture. a. Amorphous: a rock with no crystal or grain structure b. Clastic: a rock derived from weathered sediments, a rock formed by lithification c. Crystalline: a rock with identifiable mineral crystals, a rock formed by the slow cooling of magma, a rock formed by the precipitation of water