There are diamond lenses [1]. They could be just the thing for Venus, which may have sulphuric acid rain. Diamond has no known equilibrium chemical reactivity b

There are diamond lenses [1]. They could be just the thing for Venus, which may have sulphuric acid rain. Diamond has no known equilibrium chemical reactivity below about 550 deg C. [1] http://ndtcompany.com/products/diamond_lenses/ http://ndtcompany.com/products/diamond_lenses/