Why glass is cosidered to be a mixture not a compound?
A compound contains two or more different elements chemically combined in a definie ration. Since glass does not have a definite ratio of elements it cannot be considered a compound. Hope this helps straight from the chem book :)
Where is mineral cinnabar mined?
Cinnabar is primarily mined in Spain, China, and the United States. Notable cinnabar mining locations include the Almadén mine in Spain, the Xikuangshan mine in China, and the Twin Creeks mine in Nevada, USA. The mineral is often associated with mercury deposits.
How long until the oil runs out?
About 400 years at the rate we're going (from 2011).
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All oil will take quite some time, but there are some caveats:
There simply aren't enough reserves of cheap oil in the world to feed European, American and Chinese economies should the latter catch up with our standard of living, something which they are doing quite fast as we speak.
As a result, more expensive to produce oil will have to be used which inevitably will drive the oil price up. When exactly this will happen is unclear but some estimate it could start soon, around the year 2020.
What type of scientist collects rocks?
A geologist is the type of scientist who specializes in collecting and studying rocks. They analyze the properties, composition, and formation of rocks to gain insights into the Earth's history and processes.
How would you determine if a mineral was gypsum?
Gypsum is one of the softest of minerals. It is only 1.5 on the scale of hardness and can be cut with a knife. Gypsum's specific gravity is 2.2 and it weighs 135 pounds per square foot. It does not melt under a blowpipe and does not react to Hydrochloric acid. It often accompanies rock salt or halite and frequently contains Sulfur beds and may or may not be transparent.
What were the negative effects of mining?
There were some negative economic effects, negative environmental effects, and negative effects that affected personal health in the field of mining in the 1800s. Here they are:
Economic:
What is the grouping of silicate and non-silicate minerals based on?
The grouping of silicate and non-silicate minerals is based on whether they contain silicon and oxygen. Silicate minerals are divided into smaller groups based on their structure. Non-silicate minerals are didvided into smaller groups based on their composition.
Mine blasting is a controlled explosion process used in mining operations to break up rock and ore deposits. It is carried out by trained professionals using explosives to fragment rock in order to extract valuable minerals. Safety measures and precautions are implemented to protect workers and the environment during this process.
Deep shaft mining is a method of extracting minerals and resources from deep underground by digging vertically downward, creating a shaft that allows miners and equipment to access the deposits. This method is commonly used for accessing resources such as coal, gold, and copper that are located deep beneath the Earth's surface.
What three interconnected factors sustain life on earth?
Three interconnected factors that sustain life on Earth are the presence of liquid water, a suitable atmosphere with the right balance of gases for respiration, and the Earth's distance from the sun to maintain a habitable temperature range.
What are properties of granite?
Granite is a hard and durable rock with a crystalline structure that comes in a variety of colors due to the different minerals present. It is highly resistant to heat, scratches, and stains, making it a popular choice for countertops and flooring. Granite is formed from the slow crystallization of magma deep beneath the Earth's surface, giving it a unique and natural beauty.
Pumice, being mostly composed of air bubbles, is surprisingly light for a rock. So light, in fact, that it can float on water.
What are veins of gold found in rock called?
Veins of gold found in rock are typically referred to as gold veins or gold lodes. These are formed when hydrothermal fluids carry gold and deposit it in cracks and fissures within the surrounding rock.
What mine is used when ore deposits occur in veins?
Underground mining is typically used when ore deposits occur in veins. This method involves underground tunnels and shafts to access the ore deposits. Miners can follow the vein and extract the valuable minerals for processing.
Is uranium mainly found in Morocco?
Morocco is not now mentioned as a country with uranium reserves; but phosphates ores contain exploitable uranium (approx. 200 mg/kg).
Kazakhstan is the country that produces the most uranium, but large areas of uranium deposits include the area of Central Asia, Southwestern Australia, and the area around the Great Lakes.
What are five minerals mined in canada?
Canada's economy largely depends on its mineral exports. Some minerals that are mined in Canada are: coal, copper, gold, iron ore and potash.
What type of mining do Quartz process?
How much limestone would you get in an average quarry?
This past week I visited a limestone quarry that has been mining limestone in one place for 40 years. In that time, they will have mined millions of tons of limestone. Usually nearly ALL the rock is limestone, so the answer will depend on the size (area) of the quarry, how deep you can mine, and presence of any "trash" rock.
Silicates rich in iron and magnesium are termed?
The mineral Olivine is a series between two end members, fayalite and forsterite. Fayalite is the iron rich member while forsterite is the magnesium rich member.
Is emerald a silicate or nonsilicate?
Emerald is a silicate mineral. It belongs to the beryl mineral family and is composed of beryllium aluminum silicate with trace amounts of chromium and vanadium, which give it its characteristic green color.
What is a mineral deposit that is large enough to be mined called?
An economic ore body, that's if you want to make a profit.
Early prospectors would extract shallow deposits of ore by?
panning for gold in rivers and streams, using a pan to separate the heavier gold particles from the sediment. This method was effective in finding surface-level deposits of gold and other precious minerals. It was a labor-intensive but relatively simple process that allowed prospectors to quickly identify potential gold-rich areas.
What is the impact on silver mining of the environment?
Very little. Most silver is mined in deep shafts below the surface and refined in smelters which do not have chemical residues. The tailings can be slightly radioactive, but overall low environmental impact
Which island produces 25 percent of the worlds nickel?
New Caledonia is the island that produces 25 percent of the world's nickel.