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Category: Metamorphic

Intro: Portmadoc Welsh Slate (N6)

Reference N6 NAME Portmadoc (honed) 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

Metamorphic

Intro: Ledmore Marble (N10)

<NOTE:  CONTENTS ARE BETA VERSION – SUBJECT TO FACT CHECK AND VERIFICATION> Reference N10 NAME Ledmore TYPE Marble GEOLOGY Caledonian COUNTY Sutherland COLOUR Pale green with white veining TEXTURE Variable veined and brecciated texture  BLOCK SIZE LXBXH (mm) SUITABILITY  USES (1) HQ Historic Scotland  USES (2)  USES (3)  USES (4) Stone Names   Ledmore Marble…

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Metamorphic

Intro: Trevillett Slate (N8) Cornish (and Devon) Slate

<image>Trevillet   Reference N8 NAME Trevillett (honed) 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)  USES (2)  USES (3)  USES (4) Stone Names Tredorn Phyllites  

Devonian

Intro: Berwyn Welsh Slate (N4 N5)

Reference N4 N5 NAME Berwyn (honed) Berwyn (riven) TYPE Slate Slate GEOLOGY Silurian. Ludlow Beds Silurian. Ludlow Beds COUNTY Clywd COLOUR Deep blue Deep blue TEXTURE Extremely fine grained. Finely cleaved Extremely fine grained. Finely cleaved  BLOCK SIZE LXBXH (mm) 2500x1500x75mm 2500x1500x75mm SUITABILITY Roofing, cladding, paving, cills, copings and fireplaces Roofing, cladding, paving, cills, copings…

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Metamorphic

Intro: Burlington Blue Slate (N2 N3)

Reference N2 N3 NAME Burlington Blue (honed) Burlington Blue (riven) TYPE Slate Slate GEOLOGY Silurian Silurian COUNTY Cumbria Cumbria COLOUR Blue/black Blue/black TEXTURE Extremely fine grained. Pronounced cleavage Extremely fine grained. Pronounced cleavage  BLOCK SIZE LXBXH (mm) 1500x900mm 1500x900mm SUITABILITY Roofing, cladding, paving, cills, copings and fireplaces Roofing, cladding, paving, cills, copings and fireplaces  USES…

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Metamorphic

Intro: Kirkstone Sea Green (honed) (M6) Lake District Slates

Reference M6 NAME Kirkstone Sea Green (honed) TYPE Slate GEOLOGY Ordovician. Borrowdale Volcanics Series COUNTY Cumbria COLOUR Sea 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 (3)  USES (4) Stone…

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Metamorphic

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