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Ammonium-Aphthitalite

A variety of Aphthitalite
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Formula:
Na(K,NH4)SO4
Colour:
Yellowish-white
An ammonium-bearing variety of Aphthitalite. Occurs as fibrous crusts.

Originally reported from Guañape Island, La Libertad Department, Peru.


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Unique IdentifiersHide

Mindat ID:
173 (as Ammonium-Aphthitalite)
280 (as Aphthitalite)
Long-form identifier:
mindat:1:1:173:1 (as Ammonium-Aphthitalite)
mindat:1:1:280:0 (as Aphthitalite)

Physical Properties of Ammonium-AphthitaliteHide

Colour:
Yellowish-white

Chemistry of Ammonium-AphthitaliteHide

Mindat Formula:
Na(K,NH4)SO4
Element Weights:
Element% weight
O40.466 %
K24.722 %
S20.275 %
Na14.537 %

Calculated from ideal end-member formula.
Elements listed:
H, K, N, Na, O, S - search for minerals with similar chemistry

Synonyms of Ammonium-AphthitaliteHide

RadioactivityHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Ammonium-AphthitaliteHide

References for Ammonium-AphthitaliteHide

Reference List:

Localities for Ammonium-AphthitaliteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Peru
 
  • La Libertad
    • Virù Province
Palache et al. (1951)
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