Petrography lower if wholly or partly vitreous. The specific gravity of the more common rocks range from about 2.5 to 3.2. Archaeologists use petrography to identify mineral components in pottery. This information ties the artifacts to geological areas where the raw materials for the pottery were obtained. In addition to clay, potters often used rock fragments, usually called "temper" or "aplastics", to modify the clay's properties. The geological information obtained from the pottery components provides insight into how potters selected and used local and non-local resources. Archaeologists are able to determine whether pottery found in a particular location was locally produced
What Love Is Made Of performed "What Love Is Made Of". She also performed it during her headline set at the Yahoo! Wireless Festival 2013. What Love Is Made Of "What Love Is Made Of" is a song recorded by British recording artist Katy B. Written by Katy alongside Goldon Warren, who also produced it under the name Geeneus, the track was released as a standalone single via digital retailers on 8 July 2013 by Rinse and Columbia Records. It was composed after Katy had been listening to dance genres. The theme conveyed in the lyrics is love while musically, the song has been described