QFL Composition
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The while granule (lower center) is metamorphic quartz (often precipitated in veins in the country rock); the green within it is epidote. The dark granule (upper right center) is an igneous rock. The dark gray and light gray granules (lower right) are chert. The gray granule just below the penny is a meta-sandstone.
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Description
Rounded gravel particles mostly toward the upper size range of granules (4-64 mm). Lithic fragments include chert, meta-sedimentary rocks, milky (metamorphic) quartz, and occasional igneous rocks and micrite limestones. The matrix (material filling the spaces between the granules) is mostly sand mixed with silt and clay.
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