WHEELER PUMICE ARTIFACTS FROM THE MIAMI CIRCLE 197 Figure 4. Weathered exterior of pumice clast, Sutton site (8DA1034) (HMSF 1874.1). see discussion of pumice as an abrasive for cleaning armor during the sixteenth century in Ffoulkes 1912:80). Faceting (n=5). Faceting occurs when two or more, often rather small, flat surfaces are adjacent to one another. Faceting appears to result from use in polishing or abrading, like the dome-shaped specimens with one larger flat surface described above. In this case, however, the objects being polished may be smaller or more intricate, requiring the user to rub with only a small part of the clast. Multiple facets probably occur as the clast is rotated to best fit into tight spaces. Pumice clasts with faceting also may have served in polishing wood, especially more elaborate carvings with recessed areas. Ring or Crescent-shaped Forms (n=2). No complete ring- shaped clasts (circular with a central perforation) were found, but there are a number of crescent-shaped clasts that may be broken rings. These are the most highly modified pumice artifacts observed. It is not clear if these were utilitarian objects or were ornamental. Cube-shaped Forms (n=3). Cube-shaped specimens have 6 flat sides and resemble a contemporary gaming die. It is possible that these cubes were used in abrading or polishing, though they also may have been made into cubes for some other purpose. Plummet Forms (n=2). Two specimens, both from Key Largo 1 (8MO25) (see Table | and Figure 10), are pumice clasts shaped like the plummet-form artifacts most typically made from limestone or shell (Reiger 1990:227). The first example is nicely made, almost circular at its widest point, with a grooved knob at one end. The second specimen is flat and rectangular with rounded corners, and a shallow, irregular groove at one end. Distribution of Pumice at Brickell Point Pumice appears to be abundant throughout the Brickell