Mining Process, Cheap Discount Granite Kitchen Worktops UK

Mining Process

Granite Worktops / Mining Process

Granite is an igneous, magma-formed rock that is created from of quartz, feldspar and mica. These minerals can get together in different forms in different percentages that influence the colour, veining and crystallization patterns that confer to each granite uniqueness — and this trait can also be found in the customized countertop. There can be traces of other minerals, such as magnetite, pyrite, garnet and hematite but in much smaller quantities, and this account for the multitude of combinations that trigger a t wide range of granite varieties that can be found in the entire world.

Mining & Processing

Granite is quarried all over the world as there are very few quarries which have mining machinery, mining for granite is a manual job which relies solely on hand chisels and hammers for drilling.

Many years ago, excavating granite meant losing a lot of time with its processing for which they had to use not only a high amount of explosives but also manual labour in the drilling process. Today, diamond wire saws and slot drilling are the basic activities which are used in performing the job, so that granite has become less expensive for consumers, not to mention a cleaner, safer and definitively less labour-intensive excavation process.

Granite quarry is a pit or some open excavation from which granite is obtained. To obtain granite from a quarry digging, cutting or blasting process is used. This process of obtaining the stone is called quarrying. Once quarrying is done, the processing of granite starts.

Granite quarries are laid out depending on the direction in which the granite will crack first, which ensures a high rate of productivity that can be reached using the natural seams and structure. By working on these natural seams, the maximum amount will be taken out of the quarry deposit, thus cutting down the quantity of stone produced that does not have the dimensions required for industrial uses of the granite.

The types of natural fractures that can be found in a granite deposit rely both on their connection with the flow lines, and also on the surface of the granite deposit. Sheeting joints run approximatively parallel to the topographic surface at distinct levels under the surface; longitudinal joints are steep cracks that have a direction which is parallel to the flow lines; while cross joints are perpendicular to the flow lines.

Granites are now mined in most of the Indian states and are mainly used as construction material and road metal but production of dressed granite blocks and slabs from Andhra Pradesh, Karnataka, Rajasthan and Tamil Nadu have high priced. In India there are 43 granite processing units out of which 12 are in Andhra Pradesh, 13 in Karnataka, 3 in Rajasthan, 14 in Tamil Nadu and 1 in Orissa.

The recovery of marketable grade granite is assessed to be 32 to 40 per cent in Karnataka, 25 to 75 per cent in four quarries around Jalore, the main granite mining centre of Rajasthan, and 20 to 40 per cent in Tamil Nadu.

As time went by, granite has developed from a highly structural material which only to the well-off could buy, to a stone that has a multiplicity of uses — countertops are becoming very widespread in no time — let alone the fact that they are very common nowadays and are very praised by the customers. A reason for such an increase in accessibility is the highly-advanced technologies used to quarry the stone.

Such a new technology lowers down the costs thus allowing people to use granite in homes all over the world. But this wasn't the case in the past, when to excavate granite from a deposit you had to resort to an elaborate process of drilling, pounding, sawing and blasting, now — with the use of diamond wire saws, which resemble wires, except that have layers in diamond segments — quarry workers are able to saw whole blocks of granite sparing time and workforce.

Granite comes in all forms and colours of colours, including white, black, pink and red. The different percentages of quartz, feldspar and mica give an additional tinge to the rock's colour, veining and crystallization, making each granite deposit one of a kind. The great amount of quartz is responsible for giving the granite many colourful variations, as quartz can be milky white, rose, smoky, yellow or amethyst. Feldspar, another one of granite's main minerals, gives it a glassy white, blue, green or red appearance. Finally, mica can contribute to a black, green, red, yellow or brown appearance.