We have undertaken the task of rewriting all the carbonate minerals in our guide. The content was written many years ago, and will benefit from a complete overhaul, including updated introduction details, locality information, and larger 3D crystal sketches. We are also adding many additional pictures to each mineral we go through.
We started first with the Calcite group, with the following mineral now completed:
The nitrates group of minerals are seldom represented in collections, and they generally do not make good mineral specimens. Nevertheless, we wanted our guide to have a representation of all the groups of minerals, hence we included these minerals. Futher, the nitrates have been economically important and are therefore known for their industrial applications.
Here are the new nitrate minerals we added: