Carlosruizite
A valid IMA mineral species
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About Carlosruizite
Formula:
K6(Na,K)4Na6Mg10(SeO4)12(IO3)12 · 12H2O
Colour:
Colourless to pale yellow.
Lustre:
Vitreous
Hardness:
2½ - 3
Specific Gravity:
3.400 (Calculated)
Crystal System:
Trigonal
Name:
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 Valparaiso, Chile – March 28, 1997 Santiago, Chile], first Director of the Chilean Geological Survey.
Type Locality:
Isostructural with:
Carlosruizite-Fuenzalidaite Series. The Se analogue of fuenzalidaite. Unique combination of elements; the only selenate-iodate mineral known. The first Se-bearing material among the Chilean nitrate ores.
Leached from 'Caliche Amarillo'.
The structure is based on two complex slabs, normal to the c axis; each slab consists of a double layer formed by trigonal-pyramidal iodate groups, bounded at the top and bottom by layers of (Se,S,Cr)O4 groups. The layers are separated by K+, with Na+ and Mg2+ helding the layer complex together. The structure somewhat resembles that of alunite group members.
Leached from 'Caliche Amarillo'.
The structure is based on two complex slabs, normal to the c axis; each slab consists of a double layer formed by trigonal-pyramidal iodate groups, bounded at the top and bottom by layers of (Se,S,Cr)O4 groups. The layers are separated by K+, with Na+ and Mg2+ helding the layer complex together. The structure somewhat resembles that of alunite group members.
Unique Identifiers
Mindat ID:
902
Long-form identifier:
mindat:1:1:902:5
GUID
(UUID V4):
(UUID V4):
f5f0bf4e-49ea-4f6b-8b64-a3664e7f8fc5
IMA Classification of Carlosruizite
Classification of Carlosruizite
7.DG.40
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
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.:
23.1.2.2
23.1.2.2
23 : COMPOUND IODATES
1 : Miscellaneous
23 : COMPOUND IODATES
1 : Miscellaneous
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Crz | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Carlosruizite
Vitreous
Transparency:
Transparent
Colour:
Colourless to pale yellow.
Hardness:
2½ - 3 on Mohs scale
Density:
3.400 g/cm3 (Calculated)
Optical Data of Carlosruizite
Type:
Uniaxial (-)
RI values:
nω = 1.655(3) nε = 1.642(1)
Max Birefringence:
δ = 0.013
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Chemistry of Carlosruizite
Mindat Formula:
K6(Na,K)4Na6Mg10(SeO4)12(IO3)12 · 12H2O
Crystallography of Carlosruizite
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
P3c1
Setting:
P3c1
Cell Parameters:
a = 9.5901(8) Å, c = 27.56(2) Å
Ratio:
a:c = 1 : 2.874
Unit Cell V:
2,195.11 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Thin hexagonal plates. {0001} form, beveled by {1012}.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0001678 | Carlosruizite | Konnert J A, Evans H T, McGee J J, Ericksen G E (1994) Mineralogical studies of the nitrate deposits of Chile: VII. Two saline minerals with the composition K6(Na,K)4Na6Mg10(XO4)12(IO3)12.12H2O: Fuenzalidaite (X=S) and carlosruizite (X=Se) American Mineralogist 79 1003-1008 | 1994 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
13.75 Å | (30) |
7.10 Å | (20) |
3.561 Å | (100) |
3.082 Å | (32) |
3.058 Å | (39) |
2.715 Å | (39) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
25 : Evaporites (prebiotic) |
Type Occurrence of Carlosruizite
General Appearance of Type Material:
Thin hexagonal plates up to 0.2 mm.
Place of Conservation of Type Material:
n.d.
Geological Setting of Type Material:
"Caliche amarillo" (yellow nitrate ore) leachate.
Associated Minerals at Type Locality:
Synonyms of Carlosruizite
Other Language Names for Carlosruizite
Relationship of Carlosruizite to other Species
Forms a series with:
Common Associates
Related Minerals - Strunz-mindat Grouping
7.DG. | Mathesiusite | K5(UO2)4(SO4)4(VO5) · 4H2O |
7.DG.05 | Darapskite | Na3(SO4)(NO3) · H2O |
7.DG.10 | Clinoungemachite | (Na, K, Fe, SO4) |
7.DG.10 | Humberstonite | Na7K3Mg2(SO4)6(NO3)2 · 6H2O |
7.DG.10 | Ungemachite | K3Na8Fe(SO4)6(NO3)2 · 6H2O |
7.DG.15 | Bentorite | Ca6Cr2(SO4)3(OH)12 · 26H2O |
7.DG.15 | Charlesite | Ca6(Al,Si)2(SO4)2[B(OH)4](OH,O)12 · 26H2O |
7.DG.15 | Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
7.DG.15 | Jouravskite | Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O |
7.DG.15 | Sturmanite | Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12 · 25H2O |
7.DG.15 | Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
7.DG.15 | Carraraite | Ca3(SO4)[Ge(OH)6](CO3) · 12H2O |
7.DG.15 | Buryatite | Ca3(Si,Fe3+,Al)(SO4)B(OH)4(OH,O)6 · 12H2O |
7.DG.15 | Birunite | Ca18(SiO3)8.5(CO3)8.5SO4 · 15H2O(?) |
7.DG.15 | Hielscherite | Ca3Si(SO4)(SO3)(OH)6 · 11H2O |
7.DG.15 | Kottenheimite | Ca 3Si(SO4)2(OH)6 · 12H2O |
7.DG.15 | Imayoshiite | Ca3Al(CO3)[B(OH)4](OH)6 · 12H2O |
7.DG.15 | Tatarinovite | Ca3Al(SO4)[B(OH)4](OH)6 · 12H2O |
7.DG.15 | Siwaqaite | Ca6Al2(CrO4)3(OH)12 · 26H2O |
7.DG.15 | Chiyokoite | Ca3Si(CO3)[B(OH)4]O (OH)5 · 12H2O |
7.DG.20 | Rapidcreekite | Ca2(SO4)(CO3) · 4H2O |
7.DG.25 | Tatarskite | Ca6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2O |
7.DG.30 | Nakauriite | Cu8(SO4)4(CO3)(OH)6 · 48H2O |
7.DG.35 | Chessexite | (Na,K)4Ca2(Mg,Zn)3Al8(SO4)10(SiO4)2 · 40H2O |
7.DG.40 | Fuenzalidaite | K6(Na,K)4Na6Mg10(SO4)12(IO3)12 · 12H2O |
7.DG.45 | Chelyabinskite | (Ca,Mg)3(SO4,CO3)2[Si(OH)6] · 9H2O (?) |
7.DG.55 | Ramazzoite | [Mg8Cu12(PO4)(CO3)4(OH)24(H2O)20][(H0.33SO4)3(H2O)36] |
7.DG.60 | Witzkeite | Na4K4Ca(NO3)2(SO4)4 · 2H2O |
Other Information
Notes:
Slowly soluble in H2O
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 Carlosruizite
mindat.org URL:
https://www.mindat.org/min-902.html
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References for Carlosruizite
Reference List:
Konnert, Judith A., Evans, Howard T., Jr.,, Mcgee, James J., Ericksen, George E. (1994) Mineralogical studies of the nitrate deposits of Chile: VII. Two new saline minerals with the composition K6(Na,K)4Na6Mg10(XO4)12(IO3)12 · 12H2O: Fuenzalidaite (X = S) and carlosruizite (X = Se) American Mineralogist, 79 (9-10) 1003-1008
Localities for Carlosruizite
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Chile (TL) | |
| The Mineralogical Record: 27: 201. +1 other reference |
| Färber (n.d.) |
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Pozo Almonte, Tamarugal Province, Tarapacá, Chile