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.
Stibnite. de Stibnit en Stibnite own MartinThoma cczero Images by Martin Thoma Taken with Panasonic Lumix DMCTZ American Museum of Natural History in New York City Photographs taken on Uploaded with Stibnite