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What gemstone is this?

azurite

malachite

cinnabar

turquoise

Malachite is a copper carbonate hydroxide mineral, with the formula Cu2CO3(OH)2. This opaque, green banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures and spaces, deep underground.

Ninjai

1

Mauro Cateb wikipedia → Malachite

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Iraq

10%

90%

0%

0%

10

Austria

9%

73%

0%

14%

42

Pakistan

9%

72%

9%

9%

11

Germany

11%

70%

4%

14%

295

Republic of Ireland

0%

64%

11%

23%

17

Australia

7%

62%

25%

3%

27

Ukraine

20%

62%

12%

4%

24

Switzerland

19%

61%

0%

19%

31

the Netherlands

7%

61%

0%

30%

13

Poland

11%

60%

4%

23%

10809

Canada

27%

45%

9%

18%

11

Greece

47%

41%

5%

5%

17

the United States

22%

40%

9%

26%

345

the United Kingdom

15%

40%

13%

29%

65

the Philippines

18%

37%

6%

37%

16

Unknown

31%

37%

6%

25%

16

India

10%

35%

12%

40%

64

How do baby birds get oxygen inside their eggs?

They have a large oxygen supply from the start

Oxygen is created during protein reduction

Oxygen comes in through pores in the shell

They don't need oxygen at all

Which dogs are known to eat fish?

Irish Water Spaniel

Portuguese Water Dog

Okavango river is famous for its biologically rich delta. What is the river's outlet?

It doesn't have an outlet to the sea

What is the half-time of radiocarbon? (carbon-14)