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Carlosruizite

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Pozo Almonte, Iquique Province, Tarapacá Region, Chile
© Brent Thorne 2012




Formula:
K
 
6
(Na,K)
 
4
Na
 
6
Mg
 
10
(SeO
 
4
)
 
12
(IO
 
3
)
 
12
 · 12H
 
2
O
System:TrigonalColour:Colourless to pale ...
Lustre:VitreousHardness:2½ - 3
Name:Named in honor of Carlos Ruiz F. (1916– ), first Director of the Chilean Geological Survey.


Carlosruizite-Fuenzalidaite Series.

Leached from 'Caliche Amarillo'

Classification of Carlosruizite

IMA status:Approved
Strunz 8th edition ID:6/D.16-60
Nickel-Strunz 10th (pending) edition ID: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
Dana 7th edition ID:23.1.2.2
Dana 8th edition ID:23.1.2.2

23 : COMPOUND IODATES
1 : Miscellaneous
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Type Occurrence of Carlosruizite

Type Locality:Zapiga, Iquique Province, Tarapacá Region, Chile
Year of Discovery:1994

Physical Properties of Carlosruizite

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

Crystallography of Carlosruizite

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

Optical Data of Carlosruizite

Type:Uniaxial (-)
RI values: nω = 1.655 nε = 1.642
Maximum Birefringence:δ = 0.013

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Carlosruizite

Formula:
K
 
6
(Na,K)
 
4
Na
 
6
Mg
 
10
(SeO
 
4
)
 
12
(IO
 
3
)
 
12
 · 12H
 
2
O
Essential elements:H, I, K, Mg, Na, O, Se
All elements listed in formula:H, I, K, Mg, Na, O, Se

Relationship of Carlosruizite to other Species

Series:Forms a series with Fuenzalidaite (see here)
Related Minerals - Nickel-Strunz Grouping):

- +
7.DG.05Darapskite
Na
 
3
(SO
 
4
)(NO
 
3
) · H
 
2
O
7.DG.10Clinoungemachite
(Na, K, Fe, SO
 
4
)
7.DG.10Humberstonite
Na
 
7
K
 
3
Mg
 
2
(SO
 
4
)
 
6
(NO
 
3
)
 
2
 · 6H
 
2
O
7.DG.10Ungemachite
K
 
3
Na
 
8
Fe(SO
 
4
)
 
6
(NO
 
3
)
 
2
 · 6H
 
2
O
7.DG.15Bentorite
Ca
 
6
(Cr
3+
 
,Al)
 
2
(SO
 
4
)
 
3
(OH)
 
12
 · 26H
 
2
O
7.DG.15Charlesite
Ca
 
6
(Al,Si)
 
2
(SO
 
4
)
 
2
[B(OH)
 
4
](OH,O)
 
12
 · 26H
 
2
O
7.DG.15Ettringite
Ca
 
6
Al
 
2
(SO
 
4
)
 
3
(OH)
 
12
 · 26H
 
2
O
7.DG.15Jouravskite
Ca
 
6
Mn
3+
2
(SO
 
4
,CO
 
3
)
 
3
(OH)
 
12
 · 26H
 
2
O
7.DG.15Sturmanite
Ca
 
6
(Fe
3+
 
,Al,Mn
3+
 
)
 
2
(SO
 
4
)
 
2
[B(OH)
 
4
](OH)
 
12
 · 25H
 
2
O
7.DG.15Thaumasite
Ca
 
3
(SO
 
4
)[Si(OH)
 
6
](CO
 
3
) · 12H
 
2
O
7.DG.15Carraraite
Ca
 
3
(SO
 
4
)[Ge(OH)
 
6
](CO
 
3
) · 12H
 
2
O
7.DG.15Buryatite
Ca
 
3
(Si,Fe,Al)(SO
 
4
)[B(OH)
 
4
]O(OH)
 
5
 · 12H
 
2
O
7.DG.20Rapidcreekite
Ca
 
2
(SO
 
4
)(CO
 
3
) · 4H
 
2
O
7.DG.20Korkinoite
Ca
 
4
(SO
 
4
)
 
2
(CO
 
3
)
 
2
 · 9(H
 
2
O)
7.DG.25Tatarskite
Ca
 
6
Mg
 
2
(SO
 
4
)
 
2
(CO
 
3
)
 
2
(OH)
 
4
Cl
 
4
 · 7H
 
2
O
7.DG.30Nakauriite
Cu
 
8
(SO
 
4
)
 
4
(CO
 
3
)(OH)
 
6
 · 48H
 
2
O
7.DG.35Chessexite
(Na,K)
 
4
Ca
 
2
(Mg,Zn)
 
3
Al
 
8
(SO
 
4
)
 
10
(SiO
 
4
)
 
2
 · 40H
 
2
O
7.DG.40Fuenzalidaite
K
 
6
(Na,K)
 
4
Na
 
6
Mg
 
10
(SO
 
4
)
 
12
(IO
 
3
)
 
12
 · 12H
 
2
O
7.DG.45Chelyabinskite
(Ca,Mg)
 
3
(SO
 
4
,CO
 
3
)
 
2
[Si(OH)
 
6
] · 9H
 
2
O (?)
Related Minerals - Dana Grouping):

- +
23.1.2.1Fuenzalidaite
K
 
6
(Na,K)
 
4
Na
 
6
Mg
 
10
(SO
 
4
)
 
12
(IO
 
3
)
 
12
 · 12H
 
2
O

Other Names for Carlosruizite

Synonyms:
IMA1993-020
Other Languages:
German:Carlosruizit
Russian:Карлосрюизит
Spanish:Carlosruizita

Other Information

Health Warning: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

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    • Localities for Carlosruizite

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    (TL) indicates type locality. ? 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
     
    • Tarapacá Region
      • Iquique Province
    		Gunnar Farber specimen label.
    [American Mineralogist (1994) 79, 1003-1008; MinRec 27:201]
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