a volcanic past. The metamorphic and igneous rock, as well as the sand and ash from the pumice areas provide many types of tempering. In the area, there are a range of clays that create varied colors and strengths when fired. Today's Maya locate their clays in the exposed river systems of the highland valleys. It is hypothesized that the ancient people obtained their clay by the same method as today's Maya. The clays are located in exposed river systems of the highland valleys. Most likely, due to the climatic similarities over the last millennia it is likely that these same deposits or similar ones could have been used in early times. Once the clay and temper were collected, pottery creation began. The maker would take the clay and mix it with the temper (the rock pieces, ash, or sand). Temper served as a strengthening device for the pottery. Once worked into a proper consistency, the shape of the piece was created. A potter's wheel was not used in creating this pottery. Instead, they used coil and slab techniques. The coil method most likely involved the formation of clay into long coiled pieces that were wound into a vessel. The coils were then smoothed together to create walls. The slab method used square slabs of clay to create boxes or types of additions like feet or lids for vessels. Once the pot was formed into the shape, then it would have been set to dry until it was leather hard. Then, the pot was painted, inscribed, or slipped. The last step was the firing of the vessel. Kilns were used to fire the vessels, and they were normally found outside in the open air. Unlike many modern kilns, they were fired by wood, charcoal, or even grass. Like the Ancient Greeks, the Maya created clay slips from a mixture of clays and minerals. The clay slips were then used to decorate the pottery. By the fourth century, a broad range of colors including yellow, purple, red, and orange were being made. However, some Mayan painters refrained from using many colors and used only black, red, and occasionally cream. This series of ceramics is termed the "Codex-style", it being similar to the style of the Pre-Columbian books. From the 5th century onwards, post-firing stucco was adopted from Teotihuacan. By preparing a thin quicklime, the Maya added mineral pigments that would dissolve