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.
Keywords from Image Description:
Yanomamite Scorodite Topaz Cassiterite Quartz. Yanomamite Scorodite Topaz Cassiterite Quartz Dimensions mm mm mm Locality Mangabeira deposit Monte Alegre de Gois Gois Brazil Yanomamite crystals covered with thin layer clear green Scorodite Cassiterite dark brown Matrix Quartz and Topaz Total Size xxmm Matrix length in visual field