This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Azulimperial. AzulImperial selfphotographed RollStone RollStone Original upload log page de Azulimperial RollStone bytes no Andere Versionen Quartzite samples
Page 2023 Free-images.com. All images are Public Domain