Question

the natural materials most commonly associated with earth failures are clay minerals quartz lava granite

Explanation:

Clay minerals have properties that make them prone to causing earth failures. They can expand and contract with moisture changes, reducing soil stability. Quartz is a hard mineral and not typically associated with such failures. Lava is related to volcanic activity and not common in general earth - failure scenarios. Granite is a hard igneous rock and not a major factor in earth failures.

Answer:

clay minerals