The very common mineral shown in this photograph is commonly a pink- to cream-colored mineral with wavy, light-colored lines.What mineral is it? 
Definitions:
Stock Index Futures
Futures contracts where the underlying asset is a stock market index, used for speculation or hedging against market movements.
Multiplier
In economics and finance, a factor that quantifies the impact of an increase in spending or investment on the overall income or output of an economy, often used to measure the effects of fiscal policy.
Dollars
The official currency of the United States, used as a standard monetary unit.
Annual Risk-free Rate
The theoretical rate of return of an investment with zero risk over a one-year period, often represented by government bonds.
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