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Black sand beaches and deposits are common in all of the trans-Pacific countries with volcanoes. The sand is black because of the iron component, derived from the volcano, and this is a trade-able commodity used in steel making.
Black sand is mined in New Zealand and sent to Japan for steel-making, but not just for the iron component.
The sand also contains titanium as a contaminant and this makes the steel-melt in the furnace somewhat sticky - normally a disadvantage. But this stickier component adheres to the ceramic lining of the blast furnace, and thus prolongs the life of the furnace lining.
Steel furnaces require re-lining at intervals, but this is an expensive process, as the furnace has to be pulled out of commission, and allowed to cool before the refractory lining can be replaced.
Thus the titanium contaminant is an economic advantage.
What else can I help you with?
What are three common sources of beach sand?
In temperate climates the sand on the beach comes from the rocks eroded form the shoreline by the waves. In tropical climates the sand is mainly composed of broken up shells from sea creatures (a coral sand beach).
If metals are deposited in streambeds would probably be used?
The answer is either placer mining, strip mining, underground mining, spoil bank mining or open pit mining
What is finely ground silica?
Silica mining and manufacturing companies grind the mined ore down to an average particle size ranging from 15 to 3 microns. All of the raw ore is naturally occurring silica that is typically surface mined. The finished product is much finer than industrial sand (e.g., playground sand, golf sand, filtration sand, etc.). The overall particle size distribution typically falls below a 200 mesh screen or 74 microns. The particle size distribution range is typically between 74 microns down to 5 microns. The finished material is fine in particle size similar to baking flour.Quartz is the most common silica crystal and the second most common mineral on the earth's surface. It is found in almost every type of rock; igneous, metamorphic and sedimentary. While quartz deposits are abundant, and quartz is present in some form in nearly all mining operations, high purity and commercially viable deposits occur less frequently. Silica sand deposits are most commonly surface-mined in open pit operations, but dredging and underground mining are also employed. Extracted ore undergoes considerable processing to increase the silica content by reducing impurities. It is then dried and sized to produce the optimum particle size distribution for the intended application. {sourcehttp://www.ima-na.org/industrial-sand}
What is a mining long tom?
it is a long mining tool used to mine gold it is usually made out of gold.
What would happen if you stirred water and sand?
If you stirred water and sand together, you would have a mixture of water and sand until the sand sinks to the bottom.
Demerits of Sand mining in India?
sand mining
What is Sand Mining Complex's population?
The population of Sand Mining Complex is 96.
What is sand mining?
Sand mining is usually called sand quarrying in Britain. Sand quarrying is when a deposit on land of sand is viable and profitable to be extracted out of the ground - commercially viable is the main criteria! Mining implies going underground to follow a seam of coal, copper, and other materials. It is much cheaper to open-cast rather then go underground. Any quarried sand could be used in several ways, depending on the quality. This is why you may see sharp sand, silver sand, etc, advertised for sale or used in commercial manufacturing of certain products.
Is rare black sand found in Guyana?
No, Guyana has a white sand belt, but no black sand.
What method do you use in sand and gravel?
In sand and gravel mining, various methods are used including mechanical dredging, hydraulic dredging, and open-pit mining. These methods involve extracting the sand and gravel from the earth either underwater or from open pits, and then processing and sorting the material for commercial use. Environmental regulations and sustainability practices are important considerations in sand and gravel mining.
Why do Caribbean beaches have black sand?
The beaches with black sand are volcanic in origin.
Does South Beach have black sand?
no it have brown sand
What are the pros and cons of sand mining?
Pros of sand mining include economic benefits such as job creation and revenue generation from sand sales. However, cons include environmental degradation, habitat destruction, and potential negative impacts on local communities and ecosystems. Overexploitation of sand can also lead to erosion and changes in river flow patterns.
Uses of black sand?
You will find your answer in the following link http://www.answers.com/topic/black-sand
How do dunes erode?
Wind, water, land-clearing, sand mining and vehicular traffic.
What are sand properties?
it can be carribean sand or black sand from Hawaii or it can be seven mile sand what is a yellow color
How rough is black sand?
Black sand can range from fine to coarse in texture, depending on the specific location where it is found. Generally, black sand particles are smaller than traditional beach sand, giving it a smoother feel. However, some black sand beaches can have larger, rougher particles mixed in.
