Arcanite

arcanite

synergite

swaknoite

dittmarite

Images

Formula: K₂(SO₄)
Anhydrous normal sulphate, forms a series with mascagnite
Taylorite is a variety of arcanite containing ammonium found in guano beds on islands off Peru (Mindat).
Specific gravity: 2.663
Hardness: 2
Streak: White
Colour: Colourless, white3
Mildly RADIOACTIVE
Environments

Hydrothermal environments
Cave deposits

Localities

At the Cesano 8 well, Cesano geothermal field, Metropolitan City of Rome Capital, Lazio, Italy, arcanite occurs in hydrothermally altered rock in a geothermal field, associated with syngenite (HOM).

At the Arnhem Cave, Windhoek Rural, Khomas Region, Namibia, arcanite is derived from bird guano and bat guano. Associated minerals include swaknoite, mundrabillaite and dittmarite (HOM).

At the type locality, the Santa Ana Mine, Trabuco Canyon, Santa Ana Mountains, Orange county, California, USA, arcanite is anthropogenic, found in a pine railroad tie (HOM).

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