green, this can be a useful secondary fact. Crystal habit is also useful, but as it shares a similar structure and color with autunite. Nonetheless, regardless of identification, it is likely that at least some of the specimen will have already altered to meta-torbernite. See also List of minerals List of minerals named after people Metatorbernite References External links Mineral Galleries Copper(II) minerals Uranium(VI) minerals Phosphate minerals Hydrates Radioactive minerals Tetragonal minerals Minerals in space group 139