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    • Object type: SLAG
  • Thumbnail image of SWYOR-6A9677

Record ID: SWYOR-6A9677
Object type: SLAG
Broad period: UNKNOWN
County: Doncaster
Workflow stage: Awaiting validation Find waiting to be validated
Five pieces of slag or clinker like material of unknown date. The material is probably an industrial by-product. It is dark grey to black, some pieces are reflective, and often appearing laminated. It is often unusually light in weight for its size.
Created on: Thursday 10th April 2014
Last updated: Thursday 10th April 2014
Spatial data recorded.

  • Thumbnail image of SUSS-3476B5

Record ID: SUSS-3476B5
Object type: SLAG
Broad period: POST MEDIEVAL
County: East Sussex
Workflow stage: Awaiting validation Find waiting to be validated
One piece of glass slag, possibly from iron working or other related type of industrial activity, probably dating from the Post Medieval to Modern period (c. 1500-1900 AD). The glass is of a dark green material and has many irregular facets.
Created on: Friday 14th March 2014
Last updated: Friday 14th March 2014
Spatial data recorded.

  • Thumbnail image of HAMP-7A8890

Record ID: HAMP-7A8890
Object type: SLAG
Broad period: UNKNOWN
County: Hampshire
Workflow stage: Awaiting validation Find waiting to be validated
An lump of copper alloy slag, Bronze Age to Post-Medieval in date (c.2000 BC - AD 1800). Measures 34.3x29.3x12.5mm and weighs 26.2g. The surface is characetrised by lumps and hollows.
Created on: Tuesday 28th January 2014
Last updated: Wednesday 29th January 2014
Spatial data recorded.

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Record ID: NMS-D27967
Object type: SLAG
Broad period: UNKNOWN
County: Norfolk
Workflow stage: Awaiting validation Find waiting to be validated
Piece of undated iron smelting slag. Weighs 90g.
Created on: Monday 20th January 2014
Last updated: Wednesday 29th January 2014
Spatial data recorded.

  • Thumbnail image of KENT-628855

Record ID: KENT-628855
Object type: SLAG
Broad period: UNKNOWN
County: Kent
Workflow stage: Awaiting validation Find waiting to be validated
Fragment of metal working waste, Bloomery slag of unknown date.
Created on: Friday 15th November 2013
Last updated: Thursday 9th January 2014
Spatial data recorded. This findspot is known as 'Great Chart', grid reference and parish protected.

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Record ID: NMS-4CC600
Object type: SLAG
Broad period: UNKNOWN
County: Norfolk
Workflow stage: Awaiting validation Find waiting to be validated
Transect 5/6. Undated fragment of slag with copper and iron corrosion on the surface.
Created on: Tuesday 28th May 2013
Last updated: Tuesday 28th May 2013
Spatial data recorded.

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Record ID: NMS-C716D1
Object type: SLAG
Broad period: POST MEDIEVAL
County: Norfolk
Workflow stage: Awaiting validation Find waiting to be validated
Fragment of iron working slag. 24.5g. Probably post-medieval.
Created on: Friday 22nd March 2013
Last updated: Friday 22nd March 2013
Spatial data recorded. This findspot is known as 'Billingford', grid reference and parish protected.

  • Thumbnail image of WMID-99F6B4

Record ID: WMID-99F6B4
Object type: SLAG
Broad period: IRON AGE
County: Warwickshire
Workflow stage: Awaiting validation Find waiting to be validated
Three irregular fragments of iron bloomery waste (slag) or fuel ash, of Iron Age to Late Medieval dating (800 BC to AD 1600). All three fragments are light for their size, which would suggest that minimal iron metal is present within the matrix. All have a honeycomb structure, formed of solidified air bubbles. The measurements are as follows: 1: Length: 24.53 mm. Width: 23.04 mm. Thickness: 15.25 mm. Weight: 3.8 g. 2: Length: 50.57 mm. Width; 31.64 mm. Thickness: 21.75 mm. Weight: 10.1 g. 3: Length: 31.00 mm. Width: 25.66 mm. Thickness: 19.56 mm. Weight: 11.7 g. All together t…
Created on: Thursday 13th December 2012
Last updated: Friday 22nd March 2013
Spatial data recorded.

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Record ID: NMS-499937
Object type: SLAG
Broad period: IRON AGE
County: Norfolk
Workflow stage: Awaiting validation Find waiting to be validated
Iron slag fragment. Maximum thickness 52 mm. Iron Age - Post-medieval.
Created on: Wednesday 22nd August 2012
Last updated: Monday 22nd April 2013
Spatial data recorded. This findspot is known as 'Dickleburgh and Rushall', grid reference and parish protected.

  • Thumbnail image of PUBLIC-ADF947

Record ID: PUBLIC-ADF947
Object type: SLAG
Broad period: IRON AGE
County: Lincolnshire
Workflow stage: Awaiting validation Find waiting to be validated
A large fragment of Iron bloomery slag. The fragment is rich in iron with iron corrosion products over parts of its surfaces. It strongly attracts a magnet. The fragment also contains a large number of air bubbles and is heavy for its size.One side has a distinct, smooth curved profile which may be where the bloom was shaped by the inner wall of the furnace. The process of smelting iron ore to produce iron has not changed much from the Iron Age to the Medieval period.
Created on: Monday 9th July 2012
Last updated: Thursday 12th July 2012
Spatial data recorded. This findspot is known as 'Skidbrooke', grid reference and parish protected.

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Record ID: HESH-F408B8
Object type: SLAG
Broad period: POST MEDIEVAL
Workflow stage: Awaiting validation Find waiting to be validated
Two pieces of glass slag of probable late post medieval or modern date 1700 - 1850. The larger fragment is a mid green colour with white inclusions. In section a clear irregular circular pattern can be seen where the waste product has been removed by stirring the molten mixture. The fragment measures 69.4mm length, 58.0mm width 48.4mm thick and weighs 307.54 grams The smaller fragment is a mid grey black colour with cream stone like inclusions It measures 37.8mm length, 29.1mm width17.6mm thick and weighs 18.0 grams
Created on: Monday 18th June 2012
Last updated: Wednesday 12th September 2012
No spatial data available.

  • Thumbnail image of SWYOR-858DB8

Record ID: SWYOR-858DB8
Object type: SLAG
Broad period: UNKNOWN
County: Doncaster
Workflow stage: Awaiting validation Find waiting to be validated
Seven pieces of slag or industrial waste products of unknown date.
Created on: Friday 13th April 2012
Last updated: Friday 13th April 2012
Spatial data recorded.

  • Thumbnail image of SWYOR-850948

Record ID: SWYOR-850948
Object type: SLAG
Broad period: UNKNOWN
County: Doncaster
Workflow stage: Awaiting validation Find waiting to be validated
Two pieces of industrial waste, one is tap slag and the other is ferrous with an embedded lump of another material. Date unknown.
Created on: Friday 13th April 2012
Last updated: Friday 13th April 2012
Spatial data recorded.

  • Thumbnail image of SOM-751EA5

Record ID: SOM-751EA5
Object type: SLAG
Broad period: POST MEDIEVAL
County: Somerset
Workflow stage: Awaiting validation Find waiting to be validated
Piece of waste material from a high temperature refractory furnace. The piece is silica which has poured from the furnace at a very high temperature. The surface has cooled rapidly into a glass like material while the inner has cooled more slowly to a opaque white material, thought to be high in silica. The surface material is opaque olive green. It weighs 60 grams. John Allen has examined this piece and suggested it may be a refractory or ball clay in the centre. While pottery wasters have been found from the site this is evidence of a much higher temperature and modern industry an…
Created on: Wednesday 7th March 2012
Last updated: Saturday 10th March 2012
Spatial data recorded.

  • Thumbnail image of SWYOR-CA5814

Record ID: SWYOR-CA5814
Object type: SLAG
Broad period: UNKNOWN
County: Lincolnshire
Workflow stage: Awaiting validation Find waiting to be validated
Three pieces of metalworking slag; waste material from metal working. It reacts slightly to a magnet. Most of the surfaces are rough, blistered and black with some orange throughout. A portion of the large piece is dark grey and slightly "blobby" where the liquid material has solidified in drops and layers. Parts of this billowed material have a dull shine. Together, the pieces weigh 61.84 grams.
Created on: Tuesday 28th February 2012
Last updated: Tuesday 28th February 2012
Spatial data recorded.

  • Thumbnail image of SWYOR-3745E8

Record ID: SWYOR-3745E8
Object type: SLAG
Broad period: POST MEDIEVAL
County: Derbyshire
Workflow stage: Awaiting validation Find waiting to be validated
A piece of metalworking slag of unknown date. Light-weight, magnetised and slightly convex piece of slag, possibly part of a crucible, or maybe cinder slag. The material is pale grey in the centre; one surface is blackened and the other surface is dark brown in colour; it has a rough and pitted surface, glossy in places, with a purple sheen. Compare NSC Box 008 and NSC Box 032C in the National Slag Collection. Slag is very difficult to date but it is important as evidence of metalworking. This is likely to be Post Medieval to Modern in date. Length: 38.1mm; Width: 50.6mm; Thickness:…
Created on: Tuesday 21st February 2012
Last updated: Friday 24th February 2012
Spatial data recorded.

  • Thumbnail image of SWYOR-26DAE7

Record ID: SWYOR-26DAE7
Object type: SLAG
Broad period: UNKNOWN
County: Doncaster
Workflow stage: Awaiting validation Find waiting to be validated
A piece of tap slag of uncertain date from Roman to Post Medieval. It is dense, magnetic and black to purple in colour. It forms a thick plate which is rough and irregular on the lower face, with characteristic runs of solidified molten metal across the top face. This piece is just one small example of the many pieces recovered from the same place. Tap-slag is slag that is 'tapped' from a bloomery furnace. This is carried out during smelting so as to allow the long continuance of the operation. It cools to a solid slag with marked flow lines. There were fewer bloomeries after the…
Created on: Monday 20th February 2012
Last updated: Tuesday 21st February 2012
Spatial data recorded.

  • Thumbnail image of KENT-7D67A7

Record ID: KENT-7D67A7
Object type: SLAG
Broad period: POST MEDIEVAL
County: Kent
Workflow stage: Awaiting validation Find waiting to be validated
Five fragments of Blast Furnace Slag of Post-Medieval date. The slag is irregular in shape with many broken edges. It is black to light grey in colour, with layering of colours in many areas. These five fragments are only a representation much more of the material that was found in the area. Dr Justine Bayley comments "Blast furnace slag was produced in vast quantities as a by-product of iron smelting and shipped all over the country for use as hardcore, especially in areas that had no local sources of hard stone. It's used as ballast under railway tracks, and in smaller quanti…
Created on: Thursday 19th January 2012
Last updated: Thursday 19th January 2012
Spatial data recorded.

  • Thumbnail image of SWYOR-00ED64

Record ID: SWYOR-00ED64
Object type: SLAG
Broad period: UNKNOWN
County: Doncaster
Workflow stage: Awaiting validation Find waiting to be validated
A piece of slag; waste material from metal working. It has a dull stone like surface, but has been cut in half since recovery to reveal the internal structure which is closely packed bubbles, varying in size in a dark grey glassy material. Some bubbles can be seen on the outer face. The object reacts faintly to a magnet.
Created on: Friday 13th January 2012
Last updated: Monday 16th January 2012
Spatial data recorded.

  • Thumbnail image of SWYOR-0087A2

Record ID: SWYOR-0087A2
Object type: SLAG
Broad period: UNKNOWN
County: Doncaster
Workflow stage: Awaiting validation Find waiting to be validated
A piece of slag; waste material from metal working. It is an odd shape; oval in section with broken ends revealing the bubbly, glassy black internal appearance. The surface is dull and purple with pitting in places. The object reacts to a magnet. The whole is shaped rather like a rim shard of pottery.
Created on: Friday 13th January 2012
Last updated: Monday 16th January 2012
Spatial data recorded.

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