Wilhelm Karl Ritter von Haidinger | |
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| Born | 5 February 1795 |
| Died | 19 March 1871 (aged 76) Dornbach, Vienna, Austrian Empire |
Wilhelm Karl Ritter von Haidinger (or Wilhelm von Haidinger, or most often Wilhelm Haidinger) (5 February 1795 – 19 March 1871) was an Austrian mineralogist.