Although technically this is not a fossil, it has come to be, by the same process of fossilisation. The specimen consists of two 10mm square crystals of rock salt (Halite), which have been dissolved and then sediment has re-filled the space left by the crystals so forming this unusual pseudomorph. A really unusual and "quirky" piece.
The farringdon sponge bed is world famous for its fossil sponges and this is a particularly fine example. The sponge is totally three dimensional and has the characteristic orange colour as with all of these. A superb drawer specimen.
This unusual specimen was checked by Taunton Museum in the early 1980's and they were not 100 per cent sure but suggested that it could be the base of the sponge Venriculites, again, a rarity from Wilmington Quarry. Collected in 1972.
This specimen is part of a coral colony and is very rare from Wilmington Quarry. The specimen has very good internal detail in cross section and will make an important addition for the collector.
