Double-terminated alstonite crystal on a tiny bit of sulphide matrix (sphalerite and galena). Width of view 3.5mm. Stack of 40 images.
Click on the image below for a higher resolution version…
Double-terminated alstonite crystal on a tiny bit of sulphide matrix (sphalerite and galena). Width of view 3.5mm. Stack of 40 images.
Click on the image below for a higher resolution version…