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K6(Na,K)4Na6Mg10(SeO4)12(IO3)12 · 12H2O
Colourless to pale ...
2½ - 3
Named in 1994 by Judith A. Konnert, Howard T. Evans, Jr., James J. McGee, and George E. Ericksen in honor of Carlos Ruiz Fuller [September 23, 1916 September 23, 1916 Valparaiso, Chile – March 28, 1997 Santiago, Chile], first Director of the Chilean Geological Survey.
Carlosruizite-Fuenzalidaite Series.

Leached from 'Caliche Amarillo'

Classification of Carlosruizite


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
Dana 7th ed.:

1 : Miscellaneous URL:
Please feel free to link to this page.

Type Occurrence of Carlosruizite

Year of Discovery:

Physical Properties of Carlosruizite

Colourless to pale yellow.
Hardness (Mohs):
2½ - 3

Crystallography of Carlosruizite

Crystal System:
Cell Parameters:
a = 9.59Å, c = 27.56Å
a:c = 1 : 2.874
Unit Cell Volume:
V 2,195.06 ų (Calculated from Unit Cell)

Optical Data of Carlosruizite

Uniaxial (-)
RI values:
nω = 1.655 nε = 1.642
Max Birefringence:
δ = 0.013
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of Carlosruizite

K6(Na,K)4Na6Mg10(SeO4)12(IO3)12 · 12H2O
All elements listed in formula:

Relationship of Carlosruizite to other Species

Forms a series with Fuenzalidaite (see here)
7.DG.05DarapskiteNa3(SO4)(NO3) · H2O
7.DG.10Clinoungemachite(Na, K, Fe, SO4)
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.40FuenzalidaiteK6(Na,K)4Na6Mg10(SO4)12(IO3)12 · 12H2O
7.DG.45Chelyabinskite(Ca,Mg)3(SO4,CO3)2[Si(OH)6] · 9H2O (?),K)4Na6Mg10(SO4)12(IO3)12 · 12H2O

Other Names for Carlosruizite

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 Carlosruizite

Reference List:
New Minerals (1997), New Minerals 1990-1994.

American Mineralogist: 79: 1003-1008.

Internet Links for Carlosruizite

Localities for Carlosruizite

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.
  • Tarapacá Region
    • El Tamarugal Province
Gunnar Farber specimen label.
[American Mineralogist (1994) 79, 1003-1008; MinRec 27:201]
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