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
Photograph of the right side of stone axe (ISAP 08293) from Rathlin Island, Co. Antrim, from the Ulster Museum (UM WM 1501). Macro-ID - Porcellanite II. Micro-ID - Grey, 30% haematite porphs, coarse streaked, coarse mottled. Petrology - Description - Sides - both pointed, right s
Adze | Porcellanite II
Image
Photograph of face 2 of stone axe (ISAP 08293) from Rathlin Island, Co. Antrim, from the Ulster Museum (UM WM 1501). Macro-ID - Porcellanite II. Micro-ID - Grey, 30% haematite porphs, coarse streaked, coarse mottled. Petrology - Description - Sides - both pointed, right side slig
Adze | Porcellanite II
Image
Photograph of face 1 of stone axe (ISAP 08293) from Rathlin Island, Co. Antrim, from the Ulster Museum (UM WM 1501). Macro-ID - Porcellanite II. Micro-ID - Grey, 30% haematite porphs, coarse streaked, coarse mottled. Petrology - Description - Sides - both pointed, right side slig
Adze | Porcellanite II
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
Scanned drawing of stone axe (ISAP 08293) from Rathlin Island, Co. Antrim, from the Ulster Museum (UM WM 1501). Macro-ID - Porcellanite II. Micro-ID - Grey, 30% haematite porphs, coarse streaked, coarse mottled. Petrology - Description - Sides - both pointed, right side slightly
Adze | Porcellanite II
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