Not currently for sale.
One of the classic localities for wulfenite in Arizona – the Rowley Mine. Specimens from here make great fodder for mineral art!
Painted in ink on Yupo paper. Yupo is a synthetic “paper” made from 100% polypropylene. It is completely waterproof and ideal for media such as ink. Watercolour works well too. The paint dries by evaporation rather than sinking into the paper. Interesting to work with!