How do you describe the grain size texture of hornfels?
A. it has fine texture B. It has coarse texture C. It has coarse to fine texture D. It has medium coarse texture
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How do you describe the grain size texture of hornfels?
A. it has fine texture B. It has coarse texture C. It has coarse to fine texture D. It has medium coarse texture
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Answer:
Texture - granular, platy or elongate crystals randomly oriented so no foliation evident. Grain size - very fine grained; grains need to be observed under a microscope; can contain rounded porphyroblasts. Hardness - hard (commonly displays conchoidal fracture).