Orange Plain fiber-tempered sherd

Spanish moss, Tillandsia usneoides (fiber-temper)

Cross section of fiber-tempered sherd showing cross section of channel pores from burned out fibers

Cross section of fiber-tempered sherd showing a few carbonized fibers

Thin section view of fiber-tempered sherd showing carbonized fibers in some fiber temper voids (width of image 2.5mm; PPL, 4x)

Sand-tempered plain pottery

Quartz sand (sand-temper)

Cross section of sand-tempered sherd

Cross section of sand-tempered sherd

Cross section of grit-tempered sherd

Thin section view of sand-tempered sherd showing abundant quartz grains (width of image 2.5mm; XP,4x)

Thin section view of grit-tempered sherd showing quartz and quartzite grit (width of image 2.5mm; XP,4x)

St. Johns Plain sherds

SEM photo of sponge spicules (St. Johns pottery); width of image ca. 3mm

Cross section of St. Johns (spiculate paste) sherd

Thin section view of sponge spicules (width of image 0.5mm; PPL, 25x)

Pasco Plain (limestone-tempered) pottery

Crushed limestone (Pasco and Perico series pottery)

Cross section of limestone-tempered sherd

Cross section of limestone-tempered sherd

Cross section of limestone-tempered sherd

Thin section of limestone-tempered sherd (width of image 2.5mm; XP, 4x)

Pensacola Plain (shell-tempered) pottery

Crushed shell (Pensacola series pottery)

Cross section of sherd showing shell temper

Cross section of sherd showing platy voids from dissolved shell temper

Thin section of sherd showing shell temper (width of image 1.5mm XP, 10x)

Thin section of sherd platy voids from dissolved shell temper (width of image 4mm; PPL, 4x)

Jefferson-Lamar Complicated Stamped sherd with grog temper

Colorinda Plain sherds with St. Johns grog temper

Grog or crushed potsherd temper (variable pottery series)

Cross section of grog-tempered sherd

Cross section of grog-tempered sherd

Cross section of grog-tempered sherd

Thin section of grog-tempered sherd (width of image 2.5mm; PPL, 4x)

Thin section of grog-tempered sherd (width of image 1mm; PPL, 10x) showing St. Johns grog temper

NE Florida sherds tempered with charred wood (charcoal temper)

Digital scan of cross section of thin section showing charcoal temper

Thin section view of charcoal-tempered sherd showing common charred wood fragments (width of image 2.5mm; PPL,4x)

Thin section view of charcoal temper showing preservation of wood cell structure (width of image 1.5mm; PPL,10x)