A mineral display at the smithsonian in Washington DC.

A mineral display at the Smithsonian in Washington DC. Kodak T-Max 400

EOS Elan 7e, 1/125 Flash In auto.

Why is it in B&W such minerals have sometimes very vivid colours. Because of B&W it looks plane.

I think it works. I love B&W so I might be biased but you have a full range of tones. It works well.

I think the use of B&W here allows the photographer to really show the surface contours of this subject. If this were in color, the viewer would be too distracted to notice. Nice job on those shadows by the way.