![A chunk of pure Cadmium Sulfide [4032x3024 - 1.64MB]](https://pic8.co/sh/d2bBAb.jpg){kind=link}
Doesn't look all that pure. Looks kind of dirty.
Doesn't look all that pure. Looks kind of dirty.
It's dirty because it's been sitting in an envelope in a drawer since 1966. The material itself, sans surface contamination, is quite pure.
It's dirty because it's been sitting in an envelope in a drawer since 1966. The material itself, sans surface contamination, is quite pure.
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