Sapphire is a blue variety:

of agate
of chalcedony
of corundum
of jasper
Sapphire is a gemstone, a variety of the mineral corundum, an aluminium. It is typically blue in color, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors. Pink colored corundum may be either classified as ruby or sapphire depending on locale.
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Answers by country

of agate
of chalcedony
of corundum
of jasper
answers
flagPakistan
10%
10%
80%
0%
10
flagIndia
4%
11%
76%
8%
72
flagthe Philippines
8%
8%
66%
16%
12
flagSwitzerland
0%
16%
58%
16%
12
flagCanada
18%
27%
54%
0%
11
flagAustralia
15%
25%
50%
10%
20
flagUkraine
12%
22%
45%
19%
31
flagGermany
24%
17%
43%
14%
142
flagthe United Kingdom
17%
23%
41%
17%
34
flagPoland
26%
21%
39%
12%
2114
flagthe United States
27%
18%
38%
12%
77
flagAustria
25%
30%
35%
10%
20
flagGreece
16%
27%
33%
22%
18
flagthe Netherlands
20%
40%
20%
20%
10