#pharmacosiderite

[vugnasmineralblog]

Pharmacosiderite | Majuba Hill Mine, Antelope, Pershing County, Nevada, United States of America

[bluegoldstonegem]

This is one other permafusion I have designed! This is axinite! Made up of a ruby and a pharmacosiderite! Which are homeworld historians and recorders!

They live on a moon similar to the jungle moon! Except forest, everywhere and very little life! They live there alone and away from everything since era 1

[bleuhart-skies]

Pharmacosiderite!

[underthescopemineral]

Pharmacosiderite

KFe3+4(AsO4)3(OH)4·6-7H2O

Locality:

Hilarion Mine Hilarion area, Kamariza Mines Agios Konstantinos [St Constantine] Lavrion District Mines, Lavrion District, Attikí Prefecture, Greece

Collection and photo Stephan Wolfsried

Pharmacosiderite is a hydrated basic ferric arsenate.  Pharmacosiderite has an isometric crystal system, with yellowish-green, sharply defined cube crystals. When placed in ammonium solution, crystal changes colour to a distinguishing red. This secondary origin mineral is normally formed in the oxidation zones of iron-bearing sulphide deposits.The alteration of arsenopyrite, tennantite and other primary arsenates can form pharmacosiderite. It can also form from precipitation of hydrothermal solutions, but only rarely. 

[ifuckingloveminerals]

Karibibite, Yukonite, Pharmacosiderite

A/S Granit Quarry, Tuften, Tvedalen, Larvik, Vestfold, Norway

[ifuckingloveminerals]

Pharmacosiderite

A/S Granit Quarry, Tuften, Tvedalen, Larvik, Vestfold, Norway

[wigmund]

From Mindat.Org Photo Of The Day; March 26, 2015:

Pharmacosiderite: KFe3+4(AsO4)3(OH)4·6-7H2O; Arthurite: CuFe3+2(AsO4)2(OH)2·4H2O

Locality: María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain

Acicular, greenish crystals of Arthurite growing on a brown pharmacosiderite crystal. The field of view is 1 mm. Collection and photograph Juan Miguel.

[tenebraris-et-mortis]