Crushed Pottery Temper Ceramics

Aboriginal pottery tempered with bone has been found at many prehistoric protohistoric and historic sites in south and central texas.

Crushed pottery temper ceramics.

In north america the use of crushed mussel shell as temper first began millennia ago but increased dramatically at ca. I have made temper from aquarium gravel that i crushed down to an appropriate size crushed shells old broken pottery that i have pulverized down into little pieces sometimes even coarse sand. Mississippian culture pottery is the ceramic tradition of the mississippian culture 800 to 1600 ce found as artifacts in archaeological sites in the american midwest and southeast. Foreign material sand plant fibers grit shell crushed rock broken pottery added to clay for potterymaking to improve its firing qualities and prevent a vessel from cracking during the drying process.

Pure kaolin clay does not require tempering. All signs point to this being absolutely correct. Temper can be bought found or made of many different possible materials. It is often characterized by the adoption and use of riverine or more rarely marine shell tempering agents in the clay paste shell tempering is one of the hallmarks of mississippian cultural practices.

Ang 6930 archaeological ceramics k. Although most texas archaeologists have correctly identified the crushed white inclusions found in these ceramics as bone positive identification of the temper through the use of histology has not been attempted. Because clay was secured in large amounts and often stored in a pit it would dry out and then had to be broken apart and crushed before it could be. Adding temper to the clay the clay must then be washed to remove any debris and kneaded repeatedly to achieve the proper consistency and quality removing any air bubbles before shaping a pot.

Grog or crushed potsherd temper variable pottery series cross section of grog tempered sherd thin section of grog tempered sherd width of image 2 5mm. Temper reduces plasticity which would cause shrinkage or cracking upon drying and firing. Peacock 1968 declared that group a malvernian rock fabric was a tempered one. Knight marsden and carney 2003 have also demonstrated that the granodiorite found in some iron age pottery made in leicestershire was crushed and added as temper.

1000c e when the material became the dominant temper in ceramics over much.