Geological Superstore

Shale (Graptolitic)

£1.00£2.74

Dark grey Graptolitic Shale from Scotland or Cumbria. Contains the delicate blade-like fossils of Graptolites. These were small, colonial marine creatures. Please note that the graptolite content of these specimens is variable.

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SKU: SEDROK060 Category:

Shale is a fine grained clastic rock composed mainly of mud,silt & clay mineral flakes which produce the fissile structure. This shale contains the small, delicate, blade-like fossils of colonial marine creatures known as Graptolites. (phylum Hemichordata). They are known chiefly from the Upper Cambrian through the Lower Carboniferous Their name is derived from Greek graptos & lithos, which roughly translates as "written on rock" as they do have the appearance of being pencil drawn. Their structure is best viewed with a hand lens. Graptolites are globally wide ranging so are used as index fossils. Our examples have been collected in the Southern Uplands of Scotland & Cumbria. Due to their fragile nature, the graptoite content of these examples is variable. Each specimen is supplied in a labelled card tray.

Additional information

Weight 120 g
Specimen Size

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