Quarrying
Granite
Granite is nearly always hard and tough and due to this is used predominantly in the construction industry.
Granite is used as dimension stone and due to the grandeur associated with this stone it is often used in the construction of prestigious buildings. When polished Granite is highly decorative like Marble and a popular use is on Kitchen...
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Gypsum
Gypsum is generally found underground near deposits of Limestone or other minerals formed by evaporation. Gypsum is found in many forms depending on location.
It also has many uses the most common use being the formation of Plasterboard Panels and Powder Plaster due to its fire and heat resistant properties.
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Limestone
Limestone is usually associated with Hills and Downlands and occurs in regions with other Sedimentary Rocks, typically Clays. Commonly used in architecture, especially in Europe and North America, Limestone is readily available and relatively easy to cut into blocks or more elaborate carving. It is also long-lasting and stands up well to...
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Quarry Dust & Crushed Fines
When crushing stone there is a significant amount of -4mm fines produced, generally in the region of 40%. This byproduct, regardless of type of stone, is of relatively low value.
In many quarries all over the UK large stockpiles of unsold fines can be seen as they are low quality and suitable for few applications due to silt content. By...
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Quarry Scalping
When quarrying stone there may be areas in the Quarry where there is a large amount of clay contamination. These occur particularly in Limestone Quarries where the clay sediments collect in fissures in the stone. This clay slows down the Crushing and Screen process, so it is scalped off at a size (generally 80mm - 100mm). This allows the clean...
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Sandstone/Gritstone
Sandstone is a sedimentary rock composed mainly of sand sized particles. Some Sandstones are resistant to weathering yet are strangely easy to work. This makes sandstone a common building and paving material. Due to the hardness of the individual grains, uniformity of grain size and friability of their structure, some types of sandstone are...
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Slate
Slate is a fine-grained, Metamorphic Rock composed of Clay or Volcanic Ash. Slate is ‘cut' into flats sheets of stone that can be sold however this process creates a large volume of waste; up to 90% in some cases. Slate waste (shards, scalpings, dust and unworkable stone) that has been cast aside once the dressed slate has been prepared...
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