| Back | Main Details | Samples & Images | Quarries | Usage | References |
| Local Name(s): | Broughton Moor Slate. |
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| Stone Group: | Metamorphic | ||||||
| Stone Type: | Slate | ||||||
| Geology: |
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| Geological Sub-Divisons: | Borrowdale Volcanic Group |
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| General Colour Description: | Two types: grey with a slightly bluish tinge known as 'Light Sea Green' and greenish grey sold as 'Olive Green' (Clifton-Taylor & SImmons 1987: 161). Burlington Slate Ltd describes this stone as mid green often highlighted by contrasting veins. |
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| Hand Specimen Description: | A medium grained, hard, compact slate with occasional quartz veins. It is well sorted with a hackly fracture. |
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| General Comments: | This stone was originally a tuff, a volcanic ash deposit, it was subsequently metamorphosed to form a 'meta-tuff' slate. |
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| Stone Identifiers: | Foliated. | ||||||
| Reacts dilute to HCl? | No | ||||||
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