For sale is a micromineral collector specimen of pale blue thin prismatic crystals labelled as aurichalcite in cuprite from Gertraudi, Brixlegg, Kufstein District, Tyrol, Austria. It is possible that this is not aurichalcite, but a copper sulphate of some sort. Nice crystals regardless. There are small darker blue crystals that could be langite which would support this. One that needs some investigation. Price $3. Code 223009. Please note the size! Specimen requires magnification and illumination. Width of view is 5.75mm. A higher resolution photo is available here.
Postage extra. Will be the minimum parcel based on small size and light weight. Happy to combine postage on multiple items. Rates can be found here.