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Clinoungemachite

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Formula:
(Na, K, Fe, SO4)
System:
Monoclinic
Colour:
Colorless to pale yellow
Name:
Probable monoclinic dimorph of ungemachite.
An insufficiently characterised sulphate of Na, K and Fe.
Needs restudy.

Classification of Clinoungemachite

Questionable/Doubtful
7.DG.10

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
G : With large and medium-sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3
31.7.3.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
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First Recorded Occurrence of Clinoungemachite

Geological Setting of First Recorded Material:
Oxidized zone of pyrite deposit in arid environment.

Physical Properties of Clinoungemachite

Diaphaneity (Transparency):
Transparent
Colour:
Colorless to pale yellow

Crystallography of Clinoungemachite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Morphology:
Crystals thick tabular {001}, pseudo-rhombohedral. Indistinguishable from crystals of ungemachite.

Chemical Properties of Clinoungemachite

Formula:
(Na, K, Fe, SO4)
Essential elements:
All elements listed in formula:
Empirical Formula:
K3Na8Fe3+(SO4)6(NO3)2 · 6H2O

Relationship of Clinoungemachite to other Species

7.DG.05DarapskiteNa3(SO4)(NO3) · H2O
7.DG.10HumberstoniteNa7K3Mg2(SO4)6(NO3)2 · 6H2O
7.DG.10UngemachiteK3Na8Fe(SO4)6(NO3)2 · 6H2O
7.DG.15BentoriteCa6(Cr3+,Al)2(SO4)3(OH)12 · 26H2O
7.DG.15CharlesiteCa6(Al,Si)2(SO4)2[B(OH)4](OH,O)12 · 26H2O
7.DG.15EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
7.DG.15JouravskiteCa3Mn4+(SO4}(CO3)(OH)6 · 12H2O
7.DG.15SturmaniteCa6(Fe3+,Al,Mn3+)2(SO4)2[B(OH)4](OH)12 · 25H2O
7.DG.15ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
7.DG.15CarraraiteCa3(SO4)[Ge(OH)6](CO3) · 12H2O
7.DG.15BuryatiteCa3(Si,Fe,Al)(SO4)[B(OH)4]O(OH)5 · 12H2O
7.DG.20RapidcreekiteCa2(SO4)(CO3) · 4H2O
7.DG.20KorkinoiteCa4(SO4)2(CO3)2 · 9(H2O)
7.DG.25TatarskiteCa6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2O
7.DG.30NakauriiteCu8(SO4)4(CO3)(OH)6 · 48H2O
7.DG.35Chessexite(Na,K)4Ca2(Mg,Zn)3Al8(SO4)10(SiO4)2 · 40H2O
7.DG.40CarlosruiziteK6(Na,K)4Na6Mg10(SeO4)12(IO3)12 · 12H2O
7.DG.40FuenzalidaiteK6(Na,K)4Na6Mg10(SO4)12(IO3)12 · 12H2O
7.DG.45Chelyabinskite(Ca,Mg)3(SO4,CO3)2[Si(OH)6] · 9H2O (?)

Other Names for Clinoungemachite

Name in Other Languages:

Other Information

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

References for Clinoungemachite

Reference List:
Peacock, M. A. & Bandy, M. C. (1938): Ungemachite and clino-ungemachite: new minerals from Chile. American Mineralogist 23: 314-328.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 597-598.

Internet Links for Clinoungemachite

Localities for Clinoungemachite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Chile
 
  • Antofagasta Region
    • El Loa Province
      • Calama
        • Chuquicamata District
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 597; American Mineralogist (1938): 23: 314.
Mineral and/or Locality  
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