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In mining, gangue is the commercially worthless material that surrounds, or is closely mixed with, a wanted mineral in an ore deposit. The separation of gangue from minerals can be a major obstacle. The ore may also be crushed to a fine grain.

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17 What might cause a mineral deposit that had not been considered an ore become reclassified as an ore?

the classification of iron ore has been stepped up to 135 from the earlier 125 for wagon loading and to 130 from 120 for rake loading, entailing higher tariff for rail movement of the mineral. This will probably benefit some of the zonal railways such as South Eastern, East Coast, South-East Central and South Central than the others such as Northern or Eastern or Southern which do not handle any iron ore traffic.


What could be the cause if urine has a strong ammonia smell?

A strong ammonia smell in urine could be caused by dehydration, a urinary tract infection, or certain medical conditions like liver or kidney disease. It is important to consult a healthcare provider for proper diagnosis and treatment.


Protein in a urinalysis?

Protein in a urinalysis typically indicates potential kidney damage or dysfunction. It could be a sign of conditions such as kidney disease, urinary tract infections, or dehydration. Further evaluation by a healthcare provider is necessary to determine the underlying cause.


What could be the cause if you smell burnt hair in your home?

The cause of smelling burnt hair in your home could be due to an electrical issue, such as a malfunctioning appliance or wiring, or a potential fire hazard that needs to be addressed immediately.


Why is sulphur bad for us?

Sulfur is actually an essential mineral for the human body, and is involved in various biological processes. However, exposure to high levels of sulfur dioxide gas or other sulfur compounds in the environment can be harmful to health, as it can cause respiratory irritation and exacerbate respiratory conditions like asthma. Additionally, if consumed in amounts higher than the recommended daily intake, sulfur supplements can cause digestive issues or worsen existing medical conditions.

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17 What might cause a mineral deposit that had not been considered an ore become reclassified as an ore?

the classification of iron ore has been stepped up to 135 from the earlier 125 for wagon loading and to 130 from 120 for rake loading, entailing higher tariff for rail movement of the mineral. This will probably benefit some of the zonal railways such as South Eastern, East Coast, South-East Central and South Central than the others such as Northern or Eastern or Southern which do not handle any iron ore traffic.


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