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.
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Very interesting!
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Answers by country

azurite
malachite
cinnabar
turquoise
answers
flagIraq
10%
90%
0%
0%
10
flagAustria
9%
73%
0%
14%
42
flagPakistan
9%
72%
9%
9%
11
flagGermany
10%
70%
4%
14%
291
flagRepublic of Ireland
0%
64%
11%
23%
17
flagAustralia
7%
62%
25%
3%
27
flagUkraine
20%
62%
12%
4%
24
flagPoland
11%
60%
4%
23%
10789
flagSwitzerland
20%
58%
0%
20%
29
flagthe Netherlands
8%
58%
0%
33%
12
flagCanada
27%
45%
9%
18%
11
flagGreece
47%
41%
5%
5%
17
flagthe United Kingdom
15%
40%
13%
29%
65
flagthe United States
22%
39%
9%
27%
340
flagthe Philippines
18%
37%
6%
37%
16
flagUnknown
31%
37%
6%
25%
16
flagIndia
10%
35%
12%
40%
64