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Thallium-bearing Alum-(K)

A variety of Alum-(K)
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Formula:
(K,Tl)Al(SO4)2 · 12H2O
Crystal System:
Isometric
Empirical formula (Fornovolasco material):
(K0.74Tl0.10)Σ0.84(Al0.84Fe0.14)Σ0.98S2.03O8·12H2O.


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Unique IdentifiersHide

Mindat ID:
54929 (as Thallium-bearing Alum-(K))
3267 (as Alum-(K))
Long-form identifier:
mindat:1:1:54929:5 (as Thallium-bearing Alum-(K))
mindat:1:1:3267:0 (as Alum-(K))

Chemistry of Thallium-bearing Alum-(K)Hide

Mindat Formula:
(K,Tl)Al(SO4)2 · 12H2O
Element Weights:
Element% weight
O67.453 %
S13.519 %
K8.242 %
Al5.688 %
H5.099 %

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

Crystallography of Thallium-bearing Alum-(K)Hide

Crystal System:
Isometric
Class (H-M):
m3 (2/m 3) - Diploidal
Space Group:
Pa3
Setting:
Pa3
Cell Parameters:
a = 12.2030(2) Å
Unit Cell V:
1817.19 ų

Synonyms of Thallium-bearing Alum-(K)Hide

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 Thallium-bearing Alum-(K)Hide

References for Thallium-bearing Alum-(K)Hide

Localities for Thallium-bearing Alum-(K)Hide

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.
Italy
 
  • Tuscany
    • Lucca Province
      • Fabbriche di Vergemoli
Biagioni et al. (2020)
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