| Boxtextcolor: | light pink |
| Boxbgcolor: |
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| Fleischerite | |
| Category: | Sulfate mineral |
| Formula: | Pb3Ge(SO4)2(OH)6 ยท 3H2O |
| Imasymbol: | fsh |
| Strunz: | 7.DF.25 |
| System: | Hexagonal |
| Dana: | 31.07.06.03 (hydrated silicates containing hydroxyl or halogen) |
| Color: | White, light reddish-pink |
| Habit: | Accicular |
| Tenacity: | brittle |
| Mohs: | 2.5-3 |
| Luster: | Sub-vitreous, silky |
| Birefringence: | 0.029 |
| Pleochroism: | Non-pleochroic |
| Streak: | White |
| Density: | 4.3 |
Fleischerite is a type of mineral. Named after Michael Fleischer, a co-founder of the International Mineralogical Association.[1] Recognized in 1960. Has its own group made of itself, schaurteite, despujolsite, mallestigite, and genplesite.[2] It is often confused with dundasite.
Fleischerite is found only in Tsumeb (Ongopolo) Mine, Namibia. It forms in oxidized portions of a dolostone-hosted hydrothermal germanium-bearing polymetallic ore deposits.[3] The oldest samples are estimated to be 541 million years old.[4]
Very thin, up to 1.5 cm in length crystals with a tender reddish hue that form sheets of subparallel individuals or hedgehog-like aggregates.[5]