As requested (a while ago - sorry Marg!), here are a few examples of mineral art created using the Procreate app on my iPad.
Below: Wulfenite, Red Cloud Mine, Arizona
Below: Red Beryl, Utah.
Below: Crocoite, Red Lead Mine, Dundas, Tasmania.
Below: Cerussite, Dundas Extended Mine, Dundas, Tasmania.
Below: Analcime, Cape Grim, Tasmania.
Below: Pyrite, Spain.
Below: Elbaite, Stak Nala, Pakistan.
Thank you Steve.. My preference is for realism in art - minerals or botanical specimens - and Procreate seems to be an excellent tool for this purpose. I love the sharp lines and angles.. the blue Elbaite in particular is entrancing! Thanks for sharing these examples! Marg