https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13969361Edit ImageSaveSaveEditCropCustom TextGeology: various crystalline substances. Coloured lithograph by A. Pralon after G. Pouchet.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 867 x 1200 px | 300 dpiLarge JPEG 2362 x 3268 px | 300 dpiFree DownloadGeology: various crystalline substances. Coloured lithograph by A. Pralon after G. Pouchet.More