| 31. | Early 18th-century writers praised it as some of the finest building stone in England.
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| 32. | The Hall is built of forty different Ohio building stones.
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| 33. | The quarrying of building stone around Maidstone has always been important and continues even today.
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| 34. | Limestone has been quarried in the area for building stone and fertilizer for many centuries.
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| 35. | Gritstone was quarried for building stone in the area.
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| 36. | -- Masonry-- Building stone walls or laying slate patios.
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| 37. | That plant is a building stone for the community.
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| 38. | Mining is limited to building stone such as tezontle.
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| 39. | The castle ruins were thereafter used as a source of building stone ( quarry ).
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| 40. | Much of the structure was looted for building stone and for Pembrokeshire National Park Authority.
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