This is a reasonably rare find for us. We only know of one location in Dumfriesshire where we might find it, and even then, this is only the third example we have come across.
This is a calcite specimen that has formed into blade formations. Normally we find calcite in points here, although we have found other crystal types. Bladed calcite is a pretty mineral that carries all the benefits of calcite.
This piece was picked up in 2020 or early 2021. It's been on the window ledge with the iron stained quartz ever since. Its not iron stained, which explains why I couldn't find it...