32.1 Sillimanite. Silvery gray to white needles and fibers in this schist are sillimanite, black grains are biotite, red to pink grains are garnet, and pink to white grains are K-feldspar.

Image 76 of 149

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32.1 Sillimanite. Silvery gray to white needles and fibers in this schist are sillimanite, black grains are biotite, red to pink grains are garnet, and pink to white grains are K-feldspar.

32.1 Sillimanite. Silvery gray to white needles and fibers in this schist are sillimanite, black grains are biotite, red to pink grains are garnet, and pink to white grains are K-feldspar.

Image 76 of 149

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