question edit history translations

What used to be mined here?

gold

diamonds

petroleum

coal

The picture shows the Big Hole, an open-pit and underground diamond mine in Kimberley, South Africa. It is about 215 metres deep with a surface area of 17 hectares and it's claimed to be the largest hole excavated by hand, although this claim is disputed.

Ninjai

1

Bjørn Christian Tørrissen wikipedia → Big Hole

Africageographyindustryminerals

Industry quiz Minerals quiz Africa quiz

You will play as

Answers by country

Thailand

8%

83%

8%

0%

12

Italy

1%

82%

3%

10%

57

South Africa

33%

66%

0%

0%

15

Poland

15%

64%

8%

11%

4585

Greece

13%

59%

10%

13%

37

Germany

15%

58%

8%

16%

508

the United Kingdom

17%

57%

6%

18%

175

the Netherlands

20%

56%

7%

12%

39

Australia

15%

53%

7%

20%

39

Israel

28%

50%

0%

21%

14

Austria

18%

48%

17%

15%

80

Switzerland

6%

48%

17%

27%

62

Unknown

23%

46%

23%

7%

13

Republic of Ireland

22%

45%

9%

22%

31

India

14%

44%

23%

17%

99

France

27%

44%

5%

22%

18

Canada

15%

42%

15%

23%

26

the United States

16%

39%

20%

23%

631

the Philippines

36%

26%

15%

21%

19

Nigeria

6%

26%

20%

40%

15

What's the origin of the word "turquoise"?

Turku City in Finland

Turkey as a country

Turkusy, fake region

Persian tortoise

What is the largest known diamond in the world?

Which of this mineral is the best diamond alternative?

strontium titanate

Which of the following is not a water soluble vitamin?