Phosphophyllite - is a rare mineral composed of hydrated zinc phosphate. The Natural History Museum of Los Angeles County
Cuprosklodowskite / Congo - Cuprosklodowskite is a secondary uranium mineral formed by alteration of earlier uranium minerals. Cuprosklodowskite is a nesosilicate mineral, It is grass green to dark green in color, and its crystal habit is typically acicular, flat bladed crystals. It is a strongly radioactive mineral.
Rose Quartz at Senckenberg Natural History Museum
elbaite from the National Mineral Collection, elbaite (115771) from the National Mineral Collection, photo by Chip Clark
moqui marbles, utah Iron oxide concretions (Moqui marbles) Moqui Marbles, hematite concretions, from the Navajo Sandstone of southeast Utah. Scale cube, with "W", is one centimeter square. The Navajo Sandstone is also well known among rockhounds for its hundreds of thousands of iron oxide concretions