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Halotrichite, also
known as
feather alum, is a
highly hydrated sulfate of
aluminium and iron. Its
chemical formula is FeAl2(SO4)4·22H2O. It
forms fibrous...
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temperature deposit in fumaroles. It
occurs ****ociated with pyrite, marcasite,
halotrichite, pickeringite, epsomite,
potash alum,
melanterite and gypsum. The crystallochemical...
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Primitive Base-centered 3–5
Sphenoidal C2 2 22 [2]+
enantiomorphic polar halotrichite P2, P21 C2 6–9
Domatic Cs (C1h) m *11 [ ]
polar hilgardite Pm, Pc Cm...
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bodies of salt water. It
occurs in ****ociation with melanterite, gypsum,
halotrichite, pickeringite, alunogen, rozenite, and mirabilite.
Naturally occurring...
- ****ociated
minerals include pisanite, chalcanthite, epsomite, pickeringite,
halotrichite and
other sulfate minerals. It was
first described in 1850.
Crystal structure...
- (wupatkiite),
manganese (apjohnite),
magnesium (pickingerite) or iron (
halotrichite or
feather alum), and Y is a
trivalent metal ion.
Double sulfates with...
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Haggertyite Haidingerite Haiweeite Håleniusite-(La)
Halite Halloysite Halotrichite Hambergite Hanksite Hapkeite Hardystonite Harmotome Hauerite Hausmannite...
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Szomolnokite Halotrichite (Hal);
szomolnokite (Szo) and
voltaite (Vol)
General Category Sulfate mineral Formula (repeating unit) Fe2+SO4 · H2O IMA symbol...
- Hfe
Holmquistite Hlm
Hydroboracite Hbo
Hydroxymanganopyrochlore Hmpcl Halotrichite Hth
Heidornite Hdn
Hexahydrite Hhy
Holtedahlite Htd
Hydrocalumite Hcl...
- with fumaroles. It
occurs with melanterite, alunogen, fibroferrite,
halotrichite, botryogen,
butlerite and amarantite. It is by far the most
common mineral...
