Where are such formations usually found?

in caves
in coal mines
in deserts
in extinct volcanoes
Desert rose is the colloquial name given to rosette formations of crystal clusters of gypsum or baryte which contain abundant sand grains. Desert roses occur when the crystals form in arid sandy conditions, such as the evaporation of a shallow salt basin.
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Carlos Salto
reach: rather globaldesertdesertsdeserts of North AfricageologymineralsNorth Africarosessandtourismtourist attractionstourist attractions of North AfricaTunisia
in caves
in coal mines
in deserts
in extinct volcanoes
answers
flagFinland
0%
1%
98%
0%
91
flagthe United Arab Emirates
1%
5%
90%
2%
75
flagAustria
7%
1%
88%
2%
70
flagthe Netherlands
4%
1%
85%
9%
167
flagItaly
5%
2%
84%
7%
85
flagSpain
8%
2%
80%
8%
47
flagSweden
7%
3%
77%
9%
77
flagPoland
6%
2%
76%
13%
28498
flagSwitzerland
9%
7%
76%
6%
76
flagGreece
3%
3%
76%
13%
52
flagGermany
8%
1%
74%
13%
358
flagthe United Kingdom
7%
4%
72%
14%
775
flagFrance
9%
4%
71%
12%
85
flagRepublic of Ireland
10%
5%
70%
12%
104
flagNorway
12%
4%
64%
18%
64
flagthe United States
17%
7%
60%
13%
620
flagUnknown
9%
5%
57%
27%
1552
flagIndia
17%
7%
50%
20%
151
flagthe Philippines
29%
5%
45%
16%
37
flagCanada
28%
5%
42%
21%
57