1. If you were absent last class, you missed a test

2. Asia
North America
Europe
Africa
South America
Australia

3. World Mineral Map
Use the World Mineral map and reading to answer the questions:
Why are mineral reserves important to a country’s economy?
What is the most common mined mineral on earth? What 5 countries have the biggest deposits?
Which minerals are found in the US?
What is the most common mineral in the US?
Which continents is oil found on?
If you wanted to mine diamonds, which continent(s) should you go to?
If you wanted to mine gold, which continent(s) should you go to?
Do all countries have equal amounts of all of the different types of minerals?

4. Add to Table of contents
Comstock Lode Page 74 Mining Page 75

5. Mining Pg. 75
Mining is the process of extracting valuable material from the Earth.

6. 4 Steps of the Mining Process
Find the minerals.
2. Mine minerals from the earth.

7. 3. Refine the minerals.
4. Transport minerals to market to be used in products.

8. Above & Below Ground Mining

9. What is an ore?
Ores - are naturally occurring mineral deposits in the earth’s crust that contain a desired material.
1. The desired material must be present in high enough quantities to make its removal profitable.
2. Ore refining is the process used to remove these wanted products from the ores.

10. Most Common Copper Ores
Chalcocite
Chalcocite
Chalcopyrite
Malachite

11. Copper ore mining

12. Mining began in Nevada on the heels of the California gold rush in 1849 before Nevada was even a state. The major discovery of silver, known as the Comstock Lode, happened a decade later in 1859 and brought great changes to the area as miners rushed into the region and boom towns including Virginia City, Aurora, Unionville and Austin were born. Over the next 20 years, almost $1 billion of gold and silver were produced by Nevada mines. The wealth of Nevada mines, the population surge they created and the ongoing American Civil War prompted Abraham Lincoln to declare Nevada the 36th state in the Union on Oct. 31, 1864.

14. Men in a silver mine

15. Tonopah-gold discovery in 1900

16. Goldbar Mine in Goldfield, NV

17. World’s Gold Production-where do you think the most is mined?

18. USA is the #2 gold
Producer in the world
Nevada produces
85% of the gold from
North America.
But, the most common
mining product in the
USA is gravel.

19. Lone Mountain Gravel Pit

20. Barite-paints,
plastic
Silica- sand, glass
Limestone-Cement
Diatomite- insect
killer
Mercury-makes Thimerosal in tattoo ink and mascara

21. Las Vegas-Gypsum-Mined at Blue Diamond Mine
1. Blue Diamond Mine-> 2. Dig it out of the ground-> 3. Taken to building to be powdered(refined)-> 4. truck to Pabco plant at Lake Mead to be made into drywall and stucco.

22. Halite

23. Talc

24. Calcite

25. Answer essential question
Attach Comstock Lode to Pg 74

26. Why is Nevada called the “Silver State”?
Out
Why is Nevada called the “Silver State”?