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Organic Mineral

Alterite

Zn₂Fe³⁺₄(SO₄)₄(C₂O₄)₂(OH)₄·17H₂O
Crystal systemMonoclinic
ClassOrganic Mineral
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Alterite specimen

Oustanding yellow green crystals of the extremely rare mineral alterite (IMA 2018-070) from the type and only known locality worldwide: Cliff Dwellers Lodge, Coconino County, Arizona, United States of America. Alterite, Zn2Fe3+4(SO4)4(C2O4)2(OH)4· 17H2O, is the 23rd oxalate species, first natural Zn oxalate mineral to date, so it is at the same time an organic and an inorganic mineral. — Photo: David Hospital · CC BY-SA 4.0

Alterite

A yellow-green zinc-iron sulfate-oxalate found only in mineralized fossil logs in Coconino County, Arizona.

Intro adapted from Wikipedia (CC BY-SA).

Alterite is an IMA-recognized mineral species in the organic mineral class, with the chemical formula Zn₂Fe³⁺₄(SO₄)₄(C₂O₄)₂(OH)₄·17H₂O.

It crystallizes in the monoclinic crystal system. It is a member of the Alterite, Oxalate structural group.

IMA symbol Atr, IMA status: approved, named in 2018.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet. Browse more A minerals or help write this entry.