Material_type_code,Material_category,Material_type,Material_type_specific,Combined_material
1,Unknown,Unknown,,Unknown
2,Metal (other),Metal Alloy (Uncertain/Unspecified),,Metal Alloy (Uncertain/Unspecified)
3,Amber/jet/shale,Amber,,Amber
4,Bone,Bone/Antler/Horn/Ivory/Tooth (Animal),Antler,Bone/Antler/Horn/Ivory/Tooth (Animal) [Antler]
5,Bone,Bone/Antler/Horn/Ivory/Tooth (Animal),Bone,Bone/Antler/Horn/Ivory/Tooth (Animal) [Bone]
6,Bone,Bone/Antler/Horn/Ivory/Tooth (Human),Human Bone,Bone/Antler/Horn/Ivory/Tooth (Human) [Human Bone]
7,Bone,Bone/Antler/Horn/Ivory/Tooth (Human),Human Tooth,Bone/Antler/Horn/Ivory/Tooth (Human) [Human Tooth]
8,Bone,Bone/Antler/Horn/Ivory/Tooth (Uncertain/Unspecified),,Bone/Antler/Horn/Ivory/Tooth (Uncertain/Unspecified)
9,Bronze,Bronze/Cu Alloy,Bronze,Bronze/Cu Alloy [Bronze]
10,Pottery,Pottery,,Pottery
11,Flint,Chert / Flint,Chert,Chert / Flint [Chert]
12,Other,Clay,,Clay
13,Bronze,Copper,,Copper
14,Bronze,Bronze/Cu Alloy,Copper Alloy,Bronze/Cu Alloy [Copper Alloy]
15,Stone,Dolerite,,Dolerite
16,Other,Enamel,,Enamel
17,Flint,Chert / Flint,Flint,Chert / Flint [Flint]
18,Stone,Garnet,,Garnet
19,Other,Glass,,Glass
20,Gold,Gold,,Gold
21,Stone,Granite,,Granite
22,Stone,Greenstone,,Greenstone
23,Bone,Bone/Antler/Horn/Ivory/Tooth (Animal),Horn,Bone/Antler/Horn/Ivory/Tooth (Animal) [Horn]
24,Iron,Iron,,Iron
25,Bone,Bone/Antler/Horn/Ivory/Tooth (Animal),Ivory,Bone/Antler/Horn/Ivory/Tooth (Animal) [Ivory]
26,Amber/jet/shale,Jet/Lignite/Shale/Coal,Jet,Jet/Lignite/Shale/Coal [Jet]
27,Metal (other),Lead,,Lead
28,Metal (other),Lead Alloy,,Lead Alloy
29,Stone,Limestone,,Limestone
30,Wood,Wood,Oak,Wood [Oak]
32,Stone,Quartz/Quartzite,,Quartz/Quartzite
33,Stone,Sandstone,,Sandstone
34,Amber/jet/shale,Jet/Lignite/Shale/Coal,Shale,Jet/Lignite/Shale/Coal [Shale]
35,Other,Coral/Shell,Shell,Coral/Shell [Shell]
36,Metal (other),Silver,,Silver
37,Stone,Slate,,Slate
38,Stone,Stone (Uncertain/Unspecified),,Stone (Uncertain/Unspecified)
39,Metal (other),Tin,,Tin
40,Bone,Bone/Antler/Horn/Ivory/Tooth (Animal),Tooth,Bone/Antler/Horn/Ivory/Tooth (Animal) [Tooth]
41,Wood,Wood (Uncertain/Unspecified),,Wood (Uncertain/Unspecified)
42,Stone,Chalk,,Chalk
43,Other,Coral/Shell,Coral,Coral/Shell [Coral]
44,Other,Faience,,Faience
45,Other,Leather,,Leather
46,Metal (other),Metal (Uncertain/Unspecified)),,Metal (Uncertain/Unspecified))
47,Unknown,Organic  (Uncertain/Unspecified),,Organic  (Uncertain/Unspecified)
48,Other,Textile,,Textile
49,Amber/jet/shale,Jet/Lignite/Shale/Coal,Coal,Jet/Lignite/Shale/Coal [Coal]
50,Amber/jet/shale,Jet/Lignite/Shale/Coal (Unspecified),,Jet/Lignite/Shale/Coal (Unspecified)
51,Wood,Wood,Yew,Wood [Yew]
53,Stone,Steatite,,Steatite
54,Other,Ochre,,Ochre
55,Wood,Wood,Lime,Wood [Lime]
56,Bronze,Bronze/Cu Alloy (Uncertain/Unspecified),,Bronze/Cu Alloy (Uncertain/Unspecified)
57,Other,Coral/Shell (Uncertain/Unspecified),,Coral/Shell (Uncertain/Unspecified)
58,Flint,Chert / Flint (Uncertain/Unspecified),,Chert / Flint (Uncertain/Unspecified)
59,Other,Charred Plant Remains,,Charred Plant Remains
60,Wood,Wood,Sweet Chestnut,Wood [Sweet Chestnut]
61,Wood,Wood,Ash,Wood [Ash]
62,Stone,Ironstone,,Ironstone
63,Wood,Wood,Alder,Wood [Alder]
64,Bronze,Bronze/Cu Alloy,Brass,Bronze/Cu Alloy [Brass]
65,Wood,Wood,Hazel,Wood [Hazel]
66,Stone,Pumice,,Pumice
67,Wood,Wood,Willow,Wood [Willow]
68,Other,Sinew,,Sinew
69,Stone,Gneiss ,,Gneiss