Figure F116. Vein composed of chlorite (green) and titanite (small crystals in chlorite in top and bottom of the image (stage 1) followed by pyrite (black), three sphalerite crystals (dark brown; stage 2), and calcite (adjacent to pyrite and sphalerite, lower left; stage 3) (Thin Section 106; Sample 309-1256D-135R-1, 46–49 cm) (field of view = 2.5 mm; plane-polarized light).
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