Record ID: KENT-6F6D17
Object type: CRUCIBLE
Broad period: POST MEDIEVAL
County: Kent
Workflow stage: Awaiting validation
An incomplete ceramic hand made crucible. Description: The crucible is missing at least its upper section if not its middle section also. It has relatively straight sides narrowing to a very thick bottom. Where visible and not covered by concretion, a vitreous later or adhering metallic slag the fabric is very porous and rough, with various small inclusions. Much of the surface has been heated so intensely that part of the inside and outside have vitrified. The metallic elements adhering to its inside were show by p-XRF to be mostly lead with some arsenic, iron and tin. Meas…
Created on: Monday 26th April 2021
Last updated: Wednesday 14th July 2021
Spatial data recorded.

Record ID: LANCUM-86D2D2
Object type: CRUCIBLE
Broad period: MEDIEVAL
County: Cumbria
Workflow stage: Awaiting validation
Description: Triangular potsherd with ridge across centre, It has been burnt, possibly in the firing Dimensions: 51 mm high x 48mm width [centre] Top: 50mm Bottom: 52mm, Thickness: 20mm at widest point, and weighs 32g
Created on: Thursday 19th October 2017
Last updated: Wednesday 17th January 2024
Spatial data recorded. This findspot is known as 'near Wigton', grid reference and parish protected.

Record ID: WMID-F1A6F4
Object type: CRUCIBLE
Broad period: MEDIEVAL
County: Warwickshire
Workflow stage: Awaiting validation
Description: Medieval to Post medieval. basesherd, crucible. Base type: Rounded. Local type. Frequent quartz. Reduced. Fabric: Reduced. Grey core. Black exterior. Black interior. Hard. Inclusions: Frequent quartz (0.5-3 mm). Poorly sorted. Forming: Wheel thrown. Decoration: none. Surface treatment: clear glaze on exterior. Copper ore deposits on interior. Condition: Abraded. Form: crucible Fragment: Basesherd. Notes: Diameter of vessel: not enough present to accurate estimate diameter. Thickness: 20.4 mm. Mass: 90.5 g.
Created on: Monday 31st July 2017
Last updated: Tuesday 15th August 2017
Spatial data recorded.

Record ID: LON-528EFB
Object type: CRUCIBLE
Broad period: POST MEDIEVAL
Workflow stage: Awaiting validation
A Medieval - Post Medieval ceramic fragment of a crucible. Hazel Forysth notes this is a crucible for metal working or it may be alchemical. It would have been for a light element, possibly mercury as the crucible is fairly light for its size and the material has seeped through into the fabric. It can be clearly seen as a highly reflective metallic layer. The surviving section of this crucible includes the spout and possibly part of a side lug. Dimensions: weight: 561g.
Created on: Friday 23rd September 2016
Last updated: Friday 23rd September 2016
No spatial data available.

Record ID: NMS-16D1BB
Object type: CRUCIBLE
Broad period: MEDIEVAL
County: Norfolk
Workflow stage: Awaiting validation
Probably medieval flat basal sherd of a ceramic crucible in a dense, hard, sandy, pale grey fabric. About half of the base is extant. On the interior face near the edge (but not in the centre) and extending up the wall is a deposit of solidified bubbly silver coloured metal, which (in the absence of metallurgicsl analysis) is probably silver. The remainder of the inner surface is dark grey and at one point this colour extends over part of the fracture. Part of the outer face of the wall and the underside is covered with a thin, black, shiny deposit. On the wall there are also dull gre…
Created on: Friday 5th June 2015
Last updated: Friday 24th June 2016
Spatial data recorded.

• 

  Image not taken

Record ID: IARCH-5BEA50
Object type: CRUCIBLE
Broad period: ROMAN
County: Carmarthenshire
Workflow stage: Awaiting validation
A fragment of white clay crucible, to which vitreous slag and a bronze droplet adhere.
Created on: Tuesday 20th January 2015
Spatial data recorded. This findspot is known as 'Coygan Camp', grid reference and parish protected.

• 

  Image not taken

Record ID: NMS-A882B4
Object type: CRUCIBLE
Broad period: UNKNOWN
County: Norfolk
Workflow stage: Awaiting validation
Body sherd of ceramic crucible with copper alloy adhering to the inner surface. Hard with purplish core. Thickness variable, maximum 6mm. Weight 4.71g. Uncertain date.
Created on: Tuesday 12th February 2013
Last updated: Tuesday 12th February 2013
Spatial data recorded.

Record ID: LON-1E0ED4
Object type: CRUCIBLE
Broad period: MEDIEVAL
County: Greater London Authority
Workflow stage: Awaiting validation
A base fragment of a Roman to medieval ceramic crucible. The fabric is red-orange with a high quantity of small to medium inclusions. The crucible is U shaped in section, with a flat base and almost vertical sides. The fragment measures 25.2mm (height) x 33.6mm (length) x 28.9mm (width) x 4.2mm (thickness) and weighs 16.56g. The crucible was probably used in fine metalworking production; its form is functional and it could date from the Roman to medieval period (c. 43-1500 AD)
Created on: Thursday 15th March 2012
Last updated: Thursday 3rd May 2012
Spatial data recorded.

Record ID: NLM-7F1611
Object type: CRUCIBLE
Broad period: UNKNOWN
County: Lincolnshire
Workflow stage: Awaiting validation
Possibly pottery body sherd. Crucible fragment. Dark grey hard reduced fabric with a bubbled and vitreous coating inside and out, markedly thicker on the outside, and on the ?lower part of the vessel wall. A vessel diameter of circa 180mm might be inferred - it remains uncertain where on the vessel wall this sherd derives from. This object is potentially important evidence for non ferrous metalworking or other high temperature processes such as glassworking, and may complement other industrial evidence from the same site. The sherd was kindly examined by Wallace Collyer of the North L…
Created on: Tuesday 31st January 2012
Last updated: Monday 11th January 2021
Spatial data recorded. This findspot is known as 'Wickenby', grid reference and parish protected.

Record ID: NMS-6692E3
Object type: CRUCIBLE
Broad period: MEDIEVAL
County: Norfolk
Workflow stage: Awaiting validation
A medieval/post-medieval fragment of crucible, made from a pale grey hard fired fabric, with molten copper alloy adhering internally, and thick black material with a glassy appearance adhering externally. The crucible is between 5 and 14mm thick. No original edge survives.
Created on: Wednesday 1st December 2010
Last updated: Wednesday 1st December 2010
Spatial data recorded. This findspot is known as 'Wymondham', grid reference and parish protected.

Record ID: SWYOR-147594
Object type: CRUCIBLE
Broad period: POST MEDIEVAL
County: Leeds
Workflow stage: Awaiting validation
A fragment of a ceramic vessel, probably a crucible of Post Medieval date. The fabric is hard and coarse with micacous inclusions. On the outer edge in one area is a layer of metallic material, probably tin or lead based. This is bobbly and where it has flaked off, it has left a silvery grey shiny surface.
Created on: Monday 15th November 2010
Last updated: Tuesday 4th September 2012
Spatial data recorded.

Record ID: WAW-83FD22
Object type: CRUCIBLE
Broad period: UNKNOWN
County: Worcestershire
Workflow stage: Awaiting validation
Two fragments of a ceramic crucible. The fabric is a white ware with no obvious inclusions and is highly fired, but is still able to be scratched. The exterior appears to have fine linear grooves which may be decoration or part of the manufacturing process. On the interior of each sherd there is traces of a copper alloy adhered to it. The copper alloy has traces of red copper corrosion and has a 'bubbled' surface. The two sherds together weigh 5.5g. The date of the sherds are uncertain, but probably date to the Medieval or Post Medieval period.
Created on: Sunday 15th August 2010
Last updated: Thursday 2nd September 2010
Spatial data recorded.

Record ID: HESH-473406
Object type: CRUCIBLE
Broad period: MEDIEVAL
County: Gwynedd
Workflow stage: Awaiting validation
Ceramic crucible of probable later Medieval or early post medieval date (1200-1600 AD). The crucible is incomplete and been abraded by flowing water creating smooth rounded edges to the profile. In plan the crucible is irregular; originally it would have been broadly circular, now it is an irregular ellipse. In profile it is an irregular sub-rectangular shape with a relatively narrow base which expands to an open mouth. The water worn damage present has affected one edge more than the other and so diameter of the base and mouth cannot be truly estimated. The fabric is extremely hard wi…
Created on: Friday 11th May 2007
Last updated: Thursday 24th February 2011
Spatial data recorded. This findspot is known as 'Ganllwyd', grid reference and parish protected.

Record ID: DEV-B661C6
Object type: CRUCIBLE
Broad period: UNKNOWN
County: Devon
Workflow stage: Published
Possibly a fragment of crucible with copper alloy metalworking debris attached. Date unknown.
Created on: Friday 5th November 2004
Last updated: Thursday 24th February 2011
Spatial data recorded.

• 

  Image not taken

Record ID: LON-15C711
Object type: CRUCIBLE
Broad period: POST MEDIEVAL
County: Greater London Authority
Workflow stage: Published
Flat bottomed ceramic crucible (mid-light grey in colour with black pitch on the base).Copper alloy? residue adhering to the interior of the crucible.
Created on: Wednesday 24th September 2003
Last updated: Thursday 24th February 2011
No spatial data available.