This hard rock contains sand-sized grains of quartz. Fractures cut across, not around the sand grains. What is the correct name for this rock? 
Definitions:
High Inflation
A condition characterized by a significant and sustained rise in the general level of prices for goods and services, eroding purchasing power.
Nominal Wages
The wages paid to employees measured in current money and not adjusted for inflation, reflecting the face value of earnings.
Labor Markets
Economic markets in which labor services are bought and sold, including the supply of labor by households and the demand for labor by firms.
Indexation
The automatic correction by law or contract of a dollar amount for the effects of inflation
Q8: Which sea was a lake prior to
Q25: Earthquakes, landslides, and volcanic eruptions that occur
Q32: This figure shows two sections of rocks.
Q33: What location on this map best represents
Q44: Which of the following environments would most
Q60: Observe the rocks and landscape in this
Q73: If the view is looking north, which
Q117: Which principle of relative dating can be
Q118: The principle that regional elevations adjust to
Q179: Which of the following materials is NOT