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Bituminous Coal, Lancashire, UK (rock sample)
£3.36 Original price was: £3.36.£3.02Current price is: £3.02.
(Regular, will differ to photo)
In stock
Description
All our rocks are carefully selected for educational study. Average specimen size is shown below. These are ideal for classroom teaching and are a size that can be easily passed round the classroom for students to get a feel for each type.
Bituminous coal or black coal is a relatively soft coal containing a tarlike substance called bitumen or asphalt. It is of higher quality than lignite and Sub-bituminous coal, but of poorer quality than anthracite. Formation is usually the result of high pressure being exerted on lignite.
Approx: 30-50mm
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