Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Blaenavon Industrial Landscape' has mentioned 'Iron ore' in the following places:
Occurrence Sentence Text Source
The Blaenavon Ironworks, now a museum, was a major centre of iron production using locally mined or quarried iron ore, coal and limestone.
[2] Other elements of the Industrial Landscape are the mines and quarries from which coal, iron ore, fire clay and limestone were extracted.
[2] There are traces of horse-drawn railways, tunnels and inclines that were used to carry iron ore, coal and limestone to the ironworks, and to carry pig iron to the Garnddyrys Forge.
Above the furnaces is a range of ruined kilns in which iron ore was calcined or roasted.
The landscape includes coal, iron ore, fireclay and limestone workings and transport systems including a primitive iron-railed railway, leading to the canal and later steam railway tracks which were used for the import and export of materials.