segelerite
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Segelerite is a complex phosphate mineral with formula CaMgFe3+OH(PO4)2·H2O. It occurs in pegmatites and forms striking green or chartreuse crystals. It was discovered in 1974 in the Black Hills of South Dakota by an amateur mineralogist from New York, Curt G. Segeler (1901–1989), after whom it is named.
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- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 8.DH.20
- Nickel-Strunz 9th edition (updated 2009)
- 8.DH.20
- IMA Mineral Symbol
- Sgl
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Segelerite is a complex phosphate mineral with formula CaMgFe3+OH(PO4)2·H2O. It occurs in pegmatites and forms striking green or chartreuse crystals. It was discovered in 1974 in the Black Hills of South Dakota by an amateur mineralogist from New York, Curt G. Segeler (1901–1989), after whom it is named.
It is closely related to overite which is virtually the same mineral except that the iron is replaced by aluminium. Another mineral in the same series is juonniite wherein the iron is also replaced, this time by scandium.
Excerpted from Wikipedia’s “segelerite” article, available under the CC BY-SA 4.0 licence.