P414Ho, chert from the Altenburg-Nobitz gravel pit, detail
Fig.4: As a typical feature of this variety of chert, small
agates and hematite are distributed
in parts of the chert, as within the parenchyma (brown coloured cells) in this
case.
leg. SCHLESIER/Leukersdorf, coll. KRETZSCHMAR/Chemnitz