Camaronesite
A valid IMA mineral species
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About Camaronesite
Camarones Valley, Chile
Formula:
[Fe3+(H2O)2(PO3OH)]2(SO4) · 1-2H2O
Colour:
Lavender
Lustre:
Vitreous
Hardness:
2½
Specific Gravity:
2.43
Crystal System:
Trigonal
Name:
Named for the Camarones Valley, Chile; the type locality.
Unique Identifiers
Mindat ID:
43753
Long-form identifier:
mindat:1:1:43753:8
GUID
(UUID V4):
(UUID V4):
09882b95-c4b6-43a9-90e6-5fa29c1e61e1
IMA Classification of Camaronesite
Approved
IMA Formula:
Fe3+2(PO3OH)2(SO4)(H2O)4 · 1-2H2O
Approval year:
2012
First published:
2013
Type description reference:
Kampf, A. R., Mills, S. J., Nash, B. P., Housley, R. M., Rossman, G. R., Dini, M. (2013) Camaronesite, [Fe3+(H2O)2(PO3OH)]2(SO4)·1–2H2O, a new phosphate-sulfate from the Camarones Valley, Chile, structurally related to taranakite. Mineralogical Magazine, 77 (4) 453-465 doi:10.1180/minmag.2013.077.4.05
Classification of Camaronesite
8.DB.
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
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 |
|---|---|---|
| Cmr | 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 Camaronesite
Vitreous
Transparency:
Transparent
Colour:
Lavender
Comment:
The pale lavender colour of camaronesite is a direct result of the placement of Fe3+ in the crystal structure and, in particular, the isolation of each Fe3+ octahedron from other Fe3+ octahedra by intervening sulfate or phosphate tetrahedra such that no two Fe3+ octahedra share a common face, edge or vertex
Streak:
white
Hardness:
2½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{001}
{001}
Fracture:
Irregular/Uneven, Conchoidal, Step-Like
Density:
2.43(1) g/cm3 (Measured) 2.383 g/cm3 (Calculated)
Comment:
crystals generally contain inclusions of anhydrite, this value is probably too high
Optical Data of Camaronesite
Type:
Uniaxial (+)
RI values:
nω = 1.612(1) nε = 1.621(1)
Max Birefringence:
δ = 0.009
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
Pleochroism:
Visible
Comments:
O (pale lavender) > E (colourless).
Chemistry of Camaronesite
Mindat Formula:
[Fe3+(H2O)2(PO3OH)]2(SO4) · 1-2H2O
Crystallography of Camaronesite
Crystal System:
Trigonal
Class (H-M):
3 2 - Trapezohedral
Space Group:
R3 2
Cell Parameters:
a = 9.0833(5) Å, c = 42.944(3) Å
Ratio:
a:c = 1 : 4.728
Unit Cell V:
3068.5 ų
Z:
9
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.74 Å | (45) |
| 7.415 Å | (100) |
| 4.545 Å | (72) |
| 4.426 Å | (26) |
| 3.862 Å | (32) |
| 3.298 Å | (93) |
| 3.179 Å | (25) |
| 2.818 Å | (25) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47b : [Sulfates and sulfites] | |
| 47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Camaronesite
General Appearance of Type Material:
crystals up to several mm across form dense intergrowths. More rarely crystals occur as drusy aggregates of tablets up to 0.5 mm in diameter and 0.02 mm thick
Place of Conservation of Type Material:
Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007, USA under catalogue numbers 64023, 64024, 64025, 64026 and 64027. Specimens 64023–64026 are from the first boulder found. Specimen 64027 is from the sec
Geological Setting of Type Material:
a low-temperature, secondary mineral occurring in a sulfate assemblage
Associated Minerals at Type Locality:
Reference:
Kampf, A.R., Mills, S.J., Nash, B.P., Housley, R.M., Rossman, G.R., Dini, M., Gatta G.D. (2013) Camaronesite, [Fe3+(H2O)2(PO3OH)]2(SO4)•1–2H2O, a new phosphate-sulfate from the Camarones Valley, Chile, structurally related to taranakite. Mineralogical Magazine: 77: 453-465.
Synonyms of Camaronesite
Related Minerals - Strunz-mindat Grouping
| 8.DB. | Arangasite | Al2F(PO4)(SO4) · 9H2O |
| 8.DB. | Höslite | Fe3+3(VO4)2(SO4)(OH)(H2O)4 · 3H2O |
| 8.DB.05 | Diadochite | Fe3+2(PO4)(SO4)(OH) · 6H2O |
| 8.DB.05 | Pitticite | (Fe, AsO4, H2O) (?) |
| 8.DB.05 | Destinezite | Fe3+2(PO4)(SO4)(OH) · 6H2O |
| 8.DB.07 | Wilhelmgümbelite | ZnFe2+Fe3+3(PO4)3(OH)4(H2O)5 · 2H2O |
| 8.DB.07 | Schmidite | [Zn2(Fe3+,Mn2+)2Fe3+(PO4)3(OH)3(H2O)6] · 2H2O |
| 8.DB.07 | Wildenauerite | Zn(Fe3+,Mn2+)2MnFe3+(PO4)3(OH)3(H2O)6 · 2H2O |
| 8.DB.10 | Vashegyite | Al11(PO4)9(OH)6 · 38H2O |
| 8.DB.15 | Schoonerite | ZnMn2+Fe2+2Fe3+(PO4)3(OH)2 · 9H2O |
| 8.DB.20 | Sinkankasite | Mn2+Al(PO3OH)2(OH) · 6H2O |
| 8.DB.25 | Mitryaevaite | Al6(PO4)((P,S)O3(OH,O))2F2(OH)2 · 14.5H2O |
| 8.DB.30 | Sanjuanite | Al2(PO4)(SO4)(OH) · 9H2O |
| 8.DB.35 | Sarmientite | Fe3+2(AsO4)(SO4)(OH) · 5H2O |
| 8.DB.40 | Bukovskýite | Fe3+2(AsO4)(SO4)(OH) · 9H2O |
| 8.DB.40 | Flurlite | Zn3Mn2+Fe3+(PO4)3(OH)2 · 9H2O |
| 8.DB.40 | Manganflurlite | ZnMn2+3Fe3+(PO4)3(OH)2(H2O)7 · 2H2O |
| 8.DB.42 | Bohuslavite | Fe3+4(PO4)3(SO4)(OH) · nH2O |
| 8.DB.45 | Zýkaite | Fe3+4(AsO4)3(SO4)(OH) · 15H2O |
| 8.DB.47 | Lapeyreite | Cu3O[AsO3(OH)]2 · 0.75H2O |
| 8.DB.50 | Giniite | Fe2+Fe3+4(PO4)3(OH)5 · 2H2O |
| 8.DB.50 | Rossiantonite | Al3(PO4)(SO4)2(OH)2(H2O)14 |
| 8.DB.52 | Arctowskite | Al9(PO4)8(OH)3 · 27H2O |
| 8.DB.55 | Sasaite | (Al,Fe3+)14(PO4)11(SO4)(OH)7 · 83H2O |
| 8.DB.60 | Mcauslanite | Fe3Al2(PO4)3(PO3OH)F · 18H2O |
| 8.DB.65 | Goldquarryite | CuCd2Al3(PO4)4F2(H2O,F)2 · 10H2O |
| 8.DB.70 | Birchite | Cd2Cu2(PO4)2(SO4) · 5H2O |
| 8.DB.75 | Braithwaiteite | NaCu5(Ti4+Sb5+)(AsO4)4(HAsO4)2O2 · 8H2O |
Other Information
Notes:
A small crystal of camaronesite requires several hours to dissolve in cold, concentrated HCl and several days to dissolve in concentrated H2SO4.
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 Camaronesite
mindat.org URL:
https://www.mindat.org/min-43753.html
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References for Camaronesite
Reference List:
Kampf, A. R., Mills, S. J., Nash, B. P., Housley, R. M., Rossman, G. R., Dini, M. (2013) Camaronesite, [Fe3+(H2O)2(PO3OH)]2(SO4)·1–2H2O, a new phosphate-sulfate from the Camarones Valley, Chile, structurally related to taranakite. Mineralogical Magazine, 77 (4) 453-465 doi:10.1180/minmag.2013.077.4.05
Localities for Camaronesite
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
Chile (TL) | |
| Kampf et al. (2013) |
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Cuya NE9 sulfate occurrence, Cuya, Los Camarones valley, Arica Province, Arica y Parinacota, Chile