Fabric

K2

Site: 
Provenance: 
Unknown
Clay: 
This group is characterized by a silty (5-15%), non-calcareous or opaque, sometimes slightly oriented clay. The silty component contains mainly volcanic ash (3-10%) but also a recognizable quantity of rhyolitic and trachytic tuff, feldspar, pumice and andesite. Sometimes biotite, augite and hornblende were observed.
Temper: 
The non-plastic assemblage (5-25%) contains mainly volcanic ash (5-15%) and tuff, badly sorted, angular to sub-rounded rhyolite and obsidian grains, plagioclase, orthoclase, dacite, pumice, quartz, and andesite. Sometimes olivine and apatite grains were observed.
Characteristic Inclusions: 
Volcanic ash
Tuff
Rhyolite
Obsidian
Plagioclase
Orthoclase
Dacite
Pumice
Quartz
Andesite
Mixed Clay: 
No
Clay and Temper Treatment: 
Unknown