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Fracture

Fracture. Breakage of a mineral, not along planes of weakness in the crystal structure. Examine the mineral for areas where the mineral is broken. Describe the breakage as either irregular or conchoidal (has the appearance of broken glass). Definition. Obsidian. Quartz.

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Fracture

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  1. Fracture

  2. Breakage of a mineral, not along planes of weakness in the crystalstructure. Examine the mineral for areas where the mineral is broken. Describe the breakage as either irregular or conchoidal (has the appearance of broken glass) Definition

  3. Obsidian Quartz ConchoidalSmooth or rough curved break

  4. Serpentine Uneven:Rough SurfaceNot Smooth

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