Bob Burton Collection

Return to Bob Burton 1923 - 2014
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No	Name	Description	Locality	Geological formation	Weight in g.	Additional information
BB12	Fossil sponge in flint	Cretaceous sponge preserved in flint and derived from the Chalk. Unusually the cavity has been lined with botryoidal chalcedony.	Presumed to be from Stanway.	Kesgrave Sands and Gravels?	187	A very unusual specimen.

No	Name	Description	Locality	Geological formation	Image
BB1	Pebble of rock crystal	Naturally rounded pebble of transparent quartz (rock crystal). Half the pebble has been polished by hand to reveal the transparency of the quartz.	Church Lane Gravel Pit, Stanway	Kesgrave Sands and Gravels
BB2	Piece of flint containing a cavity lined with medium-sized translucent quartz crystals	A white flint with a milky chalcedony centre containing a cavity lined with medium-sized translucent sparkling quartz crystals. A very attractive geode.	Church Lane Gravel Pit, Stanway	Kesgrave Sands and Gravels
BB3	Calcite crystals lining cracks in a septarian nodule	Part of a septarian nodule from the Anglian till with large crystals of calcite. The specimen was in two parts and has been glued together by the collector.	Bradwell Quarry, near Braintree	Anglian till (boulder clay)
BB4	Hertfordshire puddingstone	Large cobble of Hertfordshire puddingstone with one side cut and polished. This example is spectacular with red pebbles in a red matrix.	Church Lane Gravel Pit, Stanway	Kesgrave Sands and Gravels
BB5	Hertfordshire puddingstone	Large cobble of Hertfordshire puddingstone with one side cut and polished. This example is spectacular with yellow pebbles with red cores. The matrix is also red consisting of shards of flint.	Church Lane Gravel Pit, Stanway	Kesgrave Sands and Gravels
BB6	Fossil sponge in flint	Cretaceous sponge preserved in flint and derived from the Chalk	Presumed to be from Stanway.	Kesgrave Sands and Gravels
BB7	Fossil coral colony	Colony of coral preserved in quartz. One side has been cut and polished	Church Lane Gravel Pit, Stanway	Kesgrave Sands and Gravels
BB8	Fossil coral colony	Colony of coral preserved in quartz. One side has been cut and polished	Church Lane Gravel Pit, Stanway	Kesgrave Sands and Gravels
BB9	Piece of flint containing a cavity lined with small, translucent quartz crystals	A brown flint with a milky chalcedony centre containing a cavity lined with small, translucent sparkling quartz crystals.	Church Lane Gravel Pit, Stanway	Kesgrave Sands and Gravels
BB10	Agate?	Quartz pebble, partially polished, that appears to show agate banding	Presumed to be from Stanway.	Kesgrave Sands and Gravels?
BB11	Agate?	Quartz pebble, partially cut and polished, that appears to show agate banding and cavities lined with quartz crystals.	Presumed to be from Stanway.	Kesgrave Sands and Gravels?
BB12	Fossil sponge in flint	Cretaceous sponge preserved in flint and derived from the Chalk. Unusually the cavity has been lined with botryoidal chalcedony.	Presumed to be from Stanway.	Kesgrave Sands and Gravels?
BB13	Piece of flint containing a cavity lined with botryoidal chalcedony	A light brown flint with a milky chalcedony centre containing a cavity lined with botryoidal chalcedony.	Presumed to be from Stanway.	Kesgrave Sands and Gravels
BB14	Fossil sponge in flint	Polished pebble showing the detail of the fossil sponge. Of Cretaceous age and derived from the Chalk	Presumed to be from Stanway.	Kesgrave Sands and Gravels
BB15	Fossil sponge in flint	Broken flint pebble revealing a fossil sponge. Of Cretaceous age and derived from the Chalk	Presumed to be from Stanway.	Kesgrave Sands and Gravels
BB16	Fossil sponge in flint	Flint pebble cut in half and partly polished revealing a fossil sponge. Of Cretaceous age and derived from the Chalk	Presumed to be from Stanway.	Kesgrave Sands and Gravels
BB17	Fossil sponge in flint	Flint pebble cut in half and polished revealing a fossil sponge. Of Cretaceous age and derived from the Chalk	Presumed to be from Stanway.	Kesgrave Sands and Gravels
BB18	Fossil bivalve in flint pebble (part and counterpart)	Both halves of a flint pebble that has been split revealing a fossil bivalve. Of Cretaceous age and derived from the Chalk	Presumed to be from Stanway.	Kesgrave Sands and Gravels