Fabric,FabricDesc,Specialism,OverrideSpecialists CH,chalk,Anglo-Saxon,CH CH,chalk,Medieval,CH CP,natural clay pellets (not grog),Anglo-Saxon,CP CP,natural clay pellets (not grog),Medieval,CP FL,flint,Anglo-Saxon,FL FL,flint,Medieval,FL GN,granite,Anglo-Saxon,GN GN,granite,Medieval,GN GR,grog,Anglo-Saxon,GR GR,grog,Medieval,GR IV,indeterminate voids,Anglo-Saxon,IV IV,indeterminate voids,Medieval,IV LI,limestones such as oolitic limestone,Anglo-Saxon,LI LI,limestones such as oolitic limestone,Medieval,LI QT,quartzite,Anglo-Saxon,QT QT,quartzite,Medieval,QT QU,quartz or quartz sand,Anglo-Saxon,QU QU,quartz or quartz sand,Medieval,QU RO,"rock fragments, including metamorphic, igneous and sedimentary; if petrologically identified, specific codes may be used (eg ""GN"", ""GD"")",Anglo-Saxon,RO RO,"rock fragments, including metamorphic, igneous and sedimentary; if petrologically identified, specific codes may be used (eg ""GN"", ""GD"")",Medieval,RO SH,shell; this is for fabrics where shell is clearly dominant; it is umlikely that you will be able to distingusih fresh shell from fossil shell without specialist assistance,Anglo-Saxon,SH SH,shell; this is for fabrics where shell is clearly dominant; it is umlikely that you will be able to distingusih fresh shell from fossil shell without specialist assistance,Medieval,SH SS,sandstone,Anglo-Saxon,SS SS,sandstone,Medieval,SS VE,organic matter (vegetable matter; charcoal and carbonaceous matter can be included here),Anglo-Saxon,VE VE,organic matter (vegetable matter; charcoal and carbonaceous matter can be included here),Medieval,VE