| MEASUREMENT OF SURVEY OBSIDIAN ARTIFACTS BY PERIOD | ||||||
| Quantity | Weight | Mean weight | Mean length | Mean width | Mean thickness | |
| Cantidad | Peso | Peso promedio | Largo promedio | Ancho promedio | Grueso promedio | |
| (n) | (g) | (g) | (mm) | (mm) | (mm) | |
| Early Period/Período Temprano | ||||||
| Black/Negro | 11 | 46.8 | 4.3 | 23.4 | 15.6 | 7.4 |
| Clear/Claro | 32 | 41.4 | 1.3 | 15.1 | 13.0 | 3.8 |
| Grey/Gris | -- | -- | -- | -- | -- | -- |
| Late Period/Período Tardío | ||||||
| Black/Negro | 409 | 2207.4 | 5.4 | 20.6 | 18.4 | 6.9 |
| Clear/Claro | 706 | 1339.2 | 1.9 | 16.5 | 15.8 | 3.4 |
| Grey/Gris | 4 | 11.3 | 2.8 | 20.5 | 20.3 | 3.8 |
| Mixed/Mezclado | ||||||
| Black/Negro | 488 | 2414.5 | 5.0 | 19.5 | 18.2 | 6.3 |
| Clear/Claro | 820 | 1277.9 | 1.6 | 16.2 | 15.0 | 2.9 |
| Grey/Gris | 6 | 8.4 | 1.4 | 17.3 | 16.5 | 2.8 |
| Total | 2476 | 7346.9 | -- | -- | -- | -- |