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Author: Elizabeth Laycock

Intro: Trevillett Slate (N9) Cornish (and Devon) Slate

Reference N9 NAME Trevillett (riven) TYPE Slate GEOLOGY Devonian. Upper Devonian Slate Beds COUNTY Cornwall COLOUR Blue/grey/green. Pyrite grains common TEXTURE Fine grained. Pronounced irregular cleavage  BLOCK SIZE LXBXH (mm) SUITABILITY Roofing and flooring  USES (1) Buckstead Abbey, Abbey Farm  USES (2) Tavistock Town Hall  USES (3)  USES (4) Stone Names Tredorn Phyllites

Metamorphic

Intro: Tom’s Forest Grey (L8) Scottish Granite

Reference L8 NAME Tom’s Forest Grey TYPE Granite GEOLOGY Caledonian COUNTY Grampian COLOUR Light silver grey with black speckle and pink colouration TEXTURE Medium grained with oatmeal texture. Quartz, feldspar and mica  BLOCK SIZE LXBXH (mm) SUITABILITY Cladding, paving, kerbs, setts, monumental and engineering  USES (1)  USES (2)  USES (3)  USES (4) Stone Names

Igneous

Intro: Shepley H4

H4  NAME Shepley  Brown TYPE Sandstone GEOLOGY Upper Carboniferous. Coal Measures COUNTY West Yorkshire COLOUR Green/brown to blue/grey TEXTURE Fine grained  BLOCK SIZE LXBXH (mm) 900mm depth on bed SUITABILITY Paving and steps  USES (1) County Hall, London  USES (2) Trafalgar Square, London  USES (3)  USES (4) Intro: Shepley H3 – Stone Library (shu.ac.uk) Intro:…

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Sandstone

Intro: St Bee’s Red Sandstone (J10)

Reference J10 NAME Red St. Bees – BIRKHAMS TYPE Sandstone GEOLOGY Triassic. St. Bees Sandstone COUNTY Cumbria COLOUR Dull red. Darkens considerably when wet TEXTURE Very fine grained  BLOCK SIZE LXBXH (mm) 3000x3000x1250mm SUITABILITY Ashlar, dressings, weathering courses and carving  USES (1) Earls Court, London  USES (2) Ontario Legislative Assembly Buildings, Toronto, Canada  USES (3)…

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Sandstone

Intro: Shap Granite (L2)

Reference L2 NAME Shap Dark TYPE Granite GEOLOGY Devonian COUNTY Cumbria COLOUR Brown/pink TEXTURE Large rectangular feldspars in a finer grained crystalline matrix  BLOCK SIZE LXBXH (mm) 1200x600x600mm SUITABILITY Cladding, paving, kerbs, setts, monumental and engineering  USES (1)  USES (2)  USES (3)  USES (4) Stone Names Shap Granite   Intro: Shap Granite (L1) – Stone…

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Igneous

Intro: Portmadoc Welsh Slate (N7)

Reference N7 NAME Portmadoc (riven) TYPE Slate GEOLOGY Ordovician. Llandeilo Series COUNTY Gwynedd COLOUR Blue/grey. Occasional pyrite flecks TEXTURE Extremely fine grained. Finely cleaved  BLOCK SIZE LXBXH (mm) SUITABILITY Roofing, cladding, flooring and architectural  USES (1)  USES (2)  USES (3)  USES (4) Stone Names   Intro: Portmadoc Welsh Slate (N6) – Stone Library (shu.ac.uk) Intro:…

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Metamorphic

Intro: Kirkstone Brathay (riven) (N1) Lake District Slates

Reference N1 NAME Kirkstone Brathay (riven) TYPE Slate GEOLOGY Ordovician. Borrowdale Volcanics Series COUNTY Cumbria COLOUR Blue/black TEXTURE Extremely fine grained. Pronounced cleavage  BLOCK SIZE LXBXH (mm) SUITABILITY Roofing, cladding, paving, cills, copings and fireplaces  USES (1)  USES (2)  USES (3)  USES (4) Stone Names Seathwaite Fell Sandstone Formation   Kirkstone Brathay (honed) (M10) Lake…

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Metamorphic

Intro: Kirkstone Brathay (honed) (M10) Lake District Slates

Kirkstone Brathay (honed) Reference M10 NAME Kirkstone Brathay (honed) TYPE Slate GEOLOGY Ordovician. Borrowdale Volcanics Series COUNTY Cumbria COLOUR Blue/black TEXTURE Extremely fine grained. Pronounced cleavage  BLOCK SIZE LXBXH (mm) SUITABILITY Roofing, cladding, paving, cills, copings and fireplaces  USES (1)  USES (2)  USES (3)  USES (4) Stone Names Seathwaite Fell Sandstone Formation   Kirkstone Brathay…

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Metamorphic

Intro: Kirkstone Silver Green (riven) (M9) Lake District Slates

Kirkstone Silver Green (riven)   Reference M9 NAME Kirkstone Silver Green (riven) TYPE Slate GEOLOGY Ordovician. Borrowdale Volcanics Series COUNTY Cumbria COLOUR Silver green TEXTURE Bedded angular fragments of varying size in fine grained matrix  BLOCK SIZE LXBXH (mm) 1800x900mm SUITABILITY Roofing, cladding, paving, cills, copings and fireplaces  USES (1)  USES (2)  USES (3)  USES…

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Metamorphic

Intro: Kirkstone Silver Green (honed) (M8) Lake District Slates

Kirkstone Silver Green (honed) Reference M8 NAME Kirkstone Silver Green (honed) TYPE Slate GEOLOGY Ordovician. Borrowdale Volcanics Series COUNTY Cumbria COLOUR Silver green TEXTURE Bedded angular fragments of varying size in fine grained matrix  BLOCK SIZE LXBXH (mm) 1800x900mm SUITABILITY Roofing, cladding, paving, cills, copings and fireplaces  USES (1) DETAILS ON APPLICATION  USES (2)  USES…

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Metamorphic

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