Figure 2. Chaotic vein in Sample 149-897D-16R-3, 17-19 cm. This image shows relict aragonite texture replaced by clear, sparry calcite, which appears to slash across all other calcite phases. Aragonite is interpreted to be the earliest phase in this sample, with vacuolized, botryoidal calcite grading to zoned sparry calcite cementing the crystals. Other calcite morphologies are also recognized in this sample, but relationships among the many phases are difficult to ascertain. Scale bar is 5 mm long.