Geologic Processes
Ore
Impact
General Mining Law of 1872
Sustainable Solutions
100

This type of the rock is the most abundant on the Earth's crust. 

What is igneous rock? 

100

This contains a large concentration of the desired mineral. 

What is high-grade ore? 

100

The overburden, or soil and rock overlying a useful mineral deposit, is usually deposited in piles of waste called this. 

What are spoils?

100

This law was designed to encourage mineral exploration and mining of this during the Westward Expansion. 

What are hard rock minerals? 

100

This is another name for tiny tech.

What is nanotechnology?

200

Most mineral resources are found within the layers of this type of rock. 

What is igneous rock? 

200

This commonly used nonmetallic ore is made mostly of silicon dioxide and is used to make glass, bricks, and concrete. 

What is sand? 

200

To extract Gold from the ore, miners spray a toxic solution of this onto huge piles of crushed rock. 

What is cyanide? What are cyanide salts? 

200

This law allows private companies to file a mining claim on this type of land. 

What are public lands? 

200

We may be able to purify water and desalinate water at a afford cost with this. 

What is a nanofilter? 

300

This is what molten rock is called when it is above ground. 

What is lava? 
300

This is a mixture (alloy) of Iron and other elements, like Manganese, Cobalt, and Chromium. 

What is steel? 

300

When metallic ore is heated and melted in this process it can sometimes smell like garlic, hence how the town of Ajo got its name. 

What is smelting? 

300

According to the Bureau of Land Management, mining companies remove at least $4 billion worth of hard rock minerals per year from US public land, but only pay this percent of profits back to taxpayers. 

What is only 2.3%? 

300

The materials revolution will replace metals with these three substances. 

What are silicon, ceramic, and plastic? 

400

This physical, chemical, and geological process breaks down rocks into smaller particles. 

What is weathering? What is erosion? 

400

These metallic ores are two of Arizona's 5 Cs. 

What are Cobalt (Co) and Copper (Cu)? 

400

During the processing of ore, ore deposits are separated from the unwanted rock material. The unwanted rock material called this is usually left behind. 

What are tailings? 

400

Critics of this law want to permanently ban this aspect of the law. 

What is to place a permanent ban on any future sales of public lands? 

400

These are replacing copper and aluminum wires in telephone cables, in fact, if you use CenturyLink as your cable and internet provider, you are already using them!

What are fiber-optic glass cables? 

500

This is the most commonly used igneous rock, often found in kitchens. 

What is granite? 

500

This nonmetallic ore is used in inorganic fertilizer and household detergents. 

What is phosphate salt? 

500

This is the most recycled metallic ore and even has a buyback program in some states. 

What is Aluminum (Al)? 

500

A proposed amendment to this law would increase the taxpayer royalty to around this percent, which is a similar percentage to the rates paid by oil, natural gas, and coal companies. 

What is an increase to 8-12%? What is 13.2% paid by oil, gas, and coal? 

500

This element, commonly used because it is light weight, has the molecular strength to replace important metals in the tech and aerospace industries. 

What is carbon? What is carbon fiber? 

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