Please Define the Following Key Terms

question 21

Short Answer

Please define the following key terms. Show Who? What? Where? When? Why Important?
-"Open Door"

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Definitions:

Au

The chemical symbol for gold, a precious metal with high conductivity, resistance to corrosion, and extensive use in electronics, jewelry, and as a monetary standard.

Fractures

Breaks or cracks in rock which can occur naturally through geological processes or artificially through human activity.

Cleavage

In geology, this refers to the tendency of crystalline materials to split along definite crystalline boundaries, often parallel to planes of weakness in their structure.

Cleavage Planes

Natural planes of weakness along which minerals preferentially break, reflecting their crystallographic structure.