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Pre-Cambrian Torridonian Sandstone from Loch Kishorn, Scotland. Among the oldest rocks to be found in the U.K. Named after the Torridon region of Scotland.
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The Torridonian Sandstones date from the Pre-Cambrian & are amongst the oldest rocks to be found in the UK. The sandstones are a part of the Torridonian Supergroup which include arkoses, shales & conglomerates where they overlie the older Lewisian rocks. These sandstones are typically hard, coarse to fine grained with trough or planar cross bedding which suggests a palaeocurrent flowing from the North West out across large fan deltas. They are dark red to brown in colour indicating a partly arid depositional environment. Examples are supplied in labelled card trays.
Weight | 120 g |
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Specimen Size | 2" x 2", 3" x 2", 4" x 3" |
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Torridonian sandstone thin section slide exhibiting a fine grained arenaceous nature. The Torridonian Sandstones date from the Pre-Cambrian & are amongst the oldest rocks to be found in the UK. The section is made to 30 microns thickness and the glass is 46 x 27 mm in size with a cover slip.
10 in stock
A Triassic red millet seed sandstone of aeolian desert origin. Samples come from Penrith, Cumbria and are supplied by weight.
Torridonian Sandstone from Loch Kishorn, Scotland. The sandstone of pre-cambrian age and among the oldest rocks found in the British isles and gets its name from Torridon where it is found. Supplied by weight, sizes vary.
Puddingstone conglomerate is a rare sedimentary rock from Hertfordshire, UK which formed during the Paleocene to Eocene period. Composed of rounded flint clasts within a silica matrix, this rock is quite hard and breaks with conchoidal fractures. Formed through erosion of flint pebbles which were later cemented by sand and silica, it is an excellent representation of conglomerate, detailing rounded clasts within a matrix. The specimens are available in 4 sizes and come supplied in a card tray with a label.
298 in stock
Carboniferous Chert found in Lancashire supplied in a card tray with label.
Out of stock
Specimens of fault breccia found in Great Langdale, Cumbria, UK. These specimens are fault breccia meaning that unlike other breccia they were formed by tectonic forces. Specimens are supplied in a white card tray with a information label.
A fine grained sandstone formed in estuarine (river mouth) conditions, composed of fine quartz and mica.
Cretaceous sandstone rock specimens from the Wealden group found in Philpots quarry, west Hoathly, Sussex. This sedimentary rock is formed in estuarine conditions and exhibits quartz and mica crystals, commonly used as a popular building stone.
48 in stock
Millstone Grit. A coarse grained Carboniferous (Namurian) sandstone from the North of England.
90 in stock
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.
20 in stock
Shelly limestone containing numerous fossil of Carboniferous age, including bivalves , corals, crinoids & brachiopods. These specimens were collected in Gloucestershire, Uk. They are available in a variety of sizes.
Travertine is a form of limestone which has been precipitated from carbonate rich hot springs. These examples are from Yorkshire, UK and are supplied in a labelled card tray.
38 in stock
Salt Pseudomorphs on a limy marl matrix collected from the Triassic Aust Cliff in Avon. Numerous cubic imprints can be identified on the limy marl substrate of these specimens; they serve as interesting educational pieces.
20 in stock
Dark grey Shale from the Jurassic of the Yorkshire coast. Originally deposited in a deep water marine environment. Occasionally fossiliferous.
190 in stock
Peat (recent) collected on the moorlands of Lancashire. Supplied in a labelled card tray.
Out of stock
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