Exam 1 covers all of the material on minerals and rocks, including the labs. Refer to the syllabus for readings and lecture topics.
Note: This is NOT intended to provide a comprehensive review. The questions below are examples of the type of questions that you should expect on the exam.
__T__ (1) Quartz is the only silicate mineral containing no cations other than silicon.
__F__ (2) Individual clay crystals are large enough to be seen with the naked eye.
__T__ (3) The most common sedimentary rocks are shale, sandstone, and limestone.
__T__ (4) Glassy igneous rocks form when lava cools so fast that mineral grains cannot crystallize and grow.
__T__ (5) Calcite is the main mineral constituent of the sedimentary rock limestone and the metamorphic rock marble.
__D__ (6) The tendency
for a mineral to break along flat surfaces is:
__C__ (7) An example
of a silicate mineral based on a sheet structure of silicate tetrahedra (sharing
of three oxygen atoms per tetrahedron) is:
(c) muscovite mica
__B__ (8) The most
abundant igneous rock in continental crust is:
__C__ (9) The rock
cycle refers to the fact that:
(a) rocks remain the same over time
(b) igneous, sedimentary and metamorphic rocks do not change over time
(c) rocks continually transform from one type to another over time
(d) sedimentary rocks lithify to form igneous rocks
__B__ (10) Intrusive
igneous rocks form when magma solidifies
(a) on the earth's surface
(b) within the earth, before it can rise all the way to the surface
(c) in the core
(d) on the sea floor
__A__ (11) The changes in rock caused by migrating hot water and by ions dissolved in the hot water is called:
(a) hydrothermal metamorphism
(d) skarn production
__B__ (12) The
process by which rocks and mineral change due to changes in temperature, pressure,
or other environmental conditions is called:
__C__ (13) Which rock forms through metamorphism of limestone?
(14, 8 points) Diagram, label, and explain the differences between crust/mantle and lithosphere/asthenosphere.
(15 - 9 points). State three diagnostic properties (lab tests) of minerals that differ significantly between galena and quartz, then state the corresponding characteristic for each mineral.
3 planes, 90°
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