Photograph of section face of stone axe (ISAP 01224) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1897:281). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ic. Petrology - Medium dark grey, mottled finely in places. Streaked coarsely on one side. De
Axe | Porcellanite
Image
Photograph of face 2 of stone axe (ISAP 01224) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1897:281). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ic. Petrology - Medium dark grey, mottled finely in places. Streaked coarsely on one side. Descript
Axe | Porcellanite
Image
Photograph of face 1 of stone axe (ISAP 01224) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1897:281). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ic. Petrology - Medium dark grey, mottled finely in places. Streaked coarsely on one side. Descript
Axe | Porcellanite
Image
Photograph of face 2 of stone roughout (ISAP 08596) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1938:10533). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ia. Petrology - Light steel grey, 20% < 5mm euhedral foliated haematite porphs, streaked wit
Roughout | Porcellanite
Image
Photograph of the left side of stone roughout (ISAP 08596) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1938:10533). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ia. Petrology - Light steel grey, 20% < 5mm euhedral foliated haematite porphs, strea
Roughout | Porcellanite
Image
Photograph of face 1 of stone roughout (ISAP 08596) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1938:10533). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ia. Petrology - Light steel grey, 20% < 5mm euhedral foliated haematite porphs, streaked wit
Roughout | Porcellanite
Image
Scanned drawing of stone roughout (ISAP 08596) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1938:10533). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ia. Petrology - Light steel grey, 20% < 5mm euhedral foliated haematite porphs, streaked with hae
Roughout | Porcellanite
Image
Photograph of polarised thin section of stone roughout (ISAP 08596) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1938:10533). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ia. Petrology - Light steel grey, 20% < 5mm euhedral foliated haematite porp
Roughout | Porcellanite
Image
Photograph of cross polarised thin section of stone roughout (ISAP 08596) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1938:10533). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ia. Petrology - Light steel grey, 20% < 5mm euhedral foliated haematit
Roughout | Porcellanite
Image
Scanned drawing of stone axe (ISAP 01224) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1897:281). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ic. Petrology - Medium dark grey, mottled finely in places. Streaked coarsely on one side. Description -
Axe | Porcellanite
Image
Photograph of polarised thin section of stone axe (ISAP 01224) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1897:281). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ic. Petrology - Medium dark grey, mottled finely in places. Streaked coarsely on on
Axe | Porcellanite
Image
Photograph of cross polarised thin section of stone axe (ISAP 01224) from Rathlin Island, Co. Antrim, from the National Museum of Ireland (NMI 1897:281). Macro-ID - Porcellanite. Micro-ID - Porcellanite Ic. Petrology - Medium dark grey, mottled finely in places. Streaked coarsely
Axe | Porcellanite
Image