Photograph of polarised thin section of stone adze (ISAP 03967) from Rathbeagh, Co. Kilkenny, from the National Museum of Ireland (NMI P1952:19). Macro-ID - Porphyry. Micro-ID - Porphyry U. Petrology - Metamorphosed hypabyssal. Grey acid extrusive - or creamy porcellanite? Descri
Adze | Porphyry
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Photograph of cross polarised thin section of stone adze/axe (ISAP 10106), Co. Armagh, from the Ulster Museum (UM 1911:218). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ia. Petrology - Brown grey, streaked, coarse mottled. Description - Very fine specimen, cond. excell. Side
Adze/Axe | Porcellanite
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Photograph of cross polarised thin section of stone adze (ISAP 03967) from Rathbeagh, Co. Kilkenny, from the National Museum of Ireland (NMI P1952:19). Macro-ID - Porphyry. Micro-ID - Porphyry U. Petrology - Metamorphosed hypabyssal. Grey acid extrusive - or creamy porcellanite?
Adze | Porphyry
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Photograph of cross polarised thin section of stone axe (ISAP 02939) from Gortilea, Co. Derry, from the National Museum of Ireland (NMI 1934:1795). Macro-ID - Gabbro. Micro-ID - Gabbro II. Petrology - Relatively fresh coarse basic intrusive, 60% < 7mm euhedral white intersertal f
Axe | Gabbro
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Photograph of polarised thin section of stone adze (ISAP 10087) from Portaferry, Co. Down, from the Ulster Museum (UM 1911:219). Macro-ID - Porcellanite?. Micro-ID - Porcellanite Ic. Petrology - Grey weathered light grey, unevenly fine to coarse mottled. Description - Sides - lef
Adze | Porcellanite?
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Photograph of polarised thin section of stone axe (ISAP 03965) from Brownsford, Co. Kilkenny, from the National Museum of Ireland (NMI 1934:5602). Macro-ID - Shale. Micro-ID - Shale Ia. Petrology - Dark grey weathered buff, fine grained parallel laminated soft shale. Description
Axe | Shale
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Photograph of polarised thin section of stone axe (ISAP 02935) from Derry, Co. Derry, from the National Museum of Ireland (NMI 1897:290). Macro-ID - Porphyry. Micro-ID - Porphyry U. Petrology - Basic extrusive. Contains some (< 2%) anhedral feldspar phenocrysts. Description - Sid
Axe | Porphyry
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Photograph of polarised thin section of stone roughout (ISAP 16972) from Tievebulliagh, Near Cushendall, Co. Antrim, from the National Museum of Ireland (NMI KK:12404). Macro-ID - Porcellanite Petrology - Description - Roughout. Blade and butt areas clearly distinguished. Face 1
Roughout | Porcellanite
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Photograph of cross polarised thin section of stone roughout (ISAP 16972) from Tievebulliagh, Near Cushendall, Co. Antrim, from the National Museum of Ireland (NMI KK:12404). Macro-ID - Porcellanite Petrology - Description - Roughout. Blade and butt areas clearly distinguished. F
Roughout | Porcellanite
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Photograph of cross polarised thin section of stone adze (ISAP 10087) from Portaferry, Co. Down, from the Ulster Museum (UM 1911:219). Macro-ID - Porcellanite?. Micro-ID - Porcellanite Ic. Petrology - Grey weathered light grey, unevenly fine to coarse mottled. Description - Sides
Adze | Porcellanite?
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Photograph of polarised thin section of stone axe (ISAP 04880) from Roolagh, Co. Tipperary, from the National Museum of Ireland (NMI 1960:512). Macro-ID - Shale. Micro-ID - Shale Ia. Petrology - Very fine grained black crystalline parallel laminated silicified sediment. Descripti
Axe | Shale
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Photograph of polarised thin section of stone adze/axe (ISAP 10078) from Ballycastle, Co. Antrim, from the Ulster Museum (UM 1913:163). Macro-ID - Schist. Micro-ID - Schist II. Petrology - Light grey very strongly foliated coarse phylitic schist, contains dark green 3mm by 1cm le
Adze/Axe | Schist
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