Charlesite (original) (raw)

A valid IMA mineral species

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About CharlesiteHide

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Formula:

Ca6(Al,Si)2(SO4)2[B(OH)4](OH,O)12 · 26H2O

Lustre:

Sub-Vitreous, Waxy, Dull

Name:

Named in 1983 by Pete J. Dunn, Donald R. Peacor, Peter B. Leavens, and Jack Leach Baum in honor of Dr. Charles Palache, [July 18, 1869 San Franciso, California, USA - December 5, 1954 near Charlottesville, Virginia, USA], systematic mineralogist, specialist on minerals of the Franklin District, Professor of Mineralogy at Harvard University, Cambridge, Massachusetts, USA.

Data are lacking to prove the existence of charlesite from South Africa.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:971:5

78501177-b7da-4c9c-8298-94b6c7987a07

IMA Classification of CharlesiteHide

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IMA Formula:

Ca6Al2(SO4)2B(OH)4(OH,O)12 · 26H2O

Classification of CharlesiteHide

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7.DG.15

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

32.4.4.1

32 : COMPOUND SULFATES
4 : Hydrated Compound Sulfates containing Hydroxyl or Halogen

10.3.3

10 : Borates with other anions
3 : Borates with sulphate

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol Source Reference
Chrl IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of CharlesiteHide

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Pronunciation:

Play Recorded by Country
Sorry, your browser doesn't support HTML5 audio. Jolyon Ralph United Kingdom

Physical Properties of CharlesiteHide

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Transparency:

Transparent, Translucent

Fracture:

Irregular/Uneven

Density:

1.77 g/cm3 (Measured) 1.79 g/cm3 (Calculated)

Optical Data of CharlesiteHide

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RI values:

_n_ω = 1.492(3) _n_ε = 1.475(3)

δ = 0.017

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Optical Extinction:

parallel

Pleochroism:

Non-pleochroic

Chemistry of CharlesiteHide

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Mindat Formula:

Ca6(Al,Si)2(SO4)2[B(OH)4](OH,O)12 · 26H2O

Crystallography of CharlesiteHide

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Class (H-M):

3_m_ - Ditrigonal Pyramidal

Cell Parameters:

a = 11.161(1) Å, c = 21.212(2) Å

Unit Cell V:

2,288.33 ų (Calculated from Unit Cell)

Morphology:

Tabular crystals with a trigonal trigonal termination

Comment:

Probable class, space group by analogy to ettringite.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
9.70 Å (100)
5.58 Å (80)
4.936 Å (20)
4.654 Å (40)
3.855 Å (80)
3.573 Å (30)
3.444 Å (40)
3.230 Å (10)
2.996 Å (10)
2.749 Å (70)
2.666 Å (20)
2.598 Å (20)
2.538 Å (70)
2.470 Å (1)
2.391 Å (5)
2.325 Å (2)
2.193 Å (70)
2.133 Å (50)
2.044 Å (5)
1.991 Å (1)
1.956 Å (1)
1.926 Å (20)
1.884 Å (1)
1.837 Å (10)
1.787 Å (5)
1.749 Å (20)
1.693 Å (10)
1.663 Å (5)
1.606 Å (20)
1.563 Å (30)
1.500 Å (20)
1.480 Å (2)
1.448 Å (5)
1.380 Å (1)
1.327 Å (2)
1.295 Å (5)
1.269 Å (2)
1.252 Å (2)
1.241 Å (2)
1.215 Å (1)
1.205 Å (1)
1.184 Å (1)
1.166 Å (5)
1.125 Å (5)
1.096 Å (5)

Comments:

ICDD 35-606. natural material

Geological EnvironmentHide

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Type Occurrence of CharlesiteHide

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General Appearance of Type Material:

Vug and fracture coating.

Place of Conservation of Type Material:

National Museum of Natural History, Washington, D.C., USA, number 148689 and C06247, C06401.
Harvard Mineralogical Museum, Cambridge, Massachusetts, USA, #107733.
John Baum private collection.

Geological Setting of Type Material:

Metamorphosed stratiform cabonate hosted zinc silicate and oxide deposit.

Associated Minerals at Type Locality:

Synonyms of CharlesiteHide

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Other Language Names for CharlesiteHide

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Relationship of Charlesite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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7.DG. Mathesiusite K5(UO2)4(SO4)4(VO5) · 4H2O Tet. 4/m : _P_4/n
7.DG.05 Darapskite Na3(SO4)(NO3) · H2O Mon. 2/m : _P_21/m
7.DG.10 Clinoungemachite (Na, K, Fe, SO4) Mon. 2/m
7.DG.10 Humberstonite Na7K3Mg2(SO4)6(NO3)2 · 6H2O Trig. 3 : _R_3
7.DG.10 Ungemachite K3Na8Fe(SO4)6(NO3)2 · 6H2O Trig. 3 : _R_3
7.DG.15 Bentorite Ca6Cr2(SO4)3(OH)12 · 26H2O Trig. 3_m_ : P_31_c
7.DG.15 Ettringite Ca6Al2(SO4)3(OH)12 · 26H2O Trig. 3_m_ : P_31_c
7.DG.15 Jouravskite Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O Hex. 6 : _P_63
7.DG.15 Sturmanite Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12 · 25H2O Trig. 3_m_ : P_31_c
7.DG.15 Thaumasite Ca3(SO4)[Si(OH)6](CO3) · 12H2O Hex. 6 : _P_63
7.DG.15 Carraraite Ca3(SO4)[Ge(OH)6](CO3) · 12H2O Hex.
7.DG.15 Buryatite Ca3(Si,Fe3+,Al)(SO4)B(OH)4(OH,O)6 · 12H2O Trig. 3_m_ : P_31_c
7.DG.15 Birunite Ca18(SiO3)8.5(CO3)8.5SO4 · 15H2O(?)
7.DG.15 Hielscherite Ca3Si(SO4)(SO3)(OH)6 · 11H2O Hex. 6 : _P_63
7.DG.15 Kottenheimite Ca 3Si(SO4)2(OH)6 · 12H2O Hex. 6/m : _P_63/m
7.DG.15 Imayoshiite Ca3Al(CO3)[B(OH)4](OH)6 · 12H2O Hex. 6 : _P_63
7.DG.15 Tatarinovite Ca3Al(SO4)[B(OH)4](OH)6 · 12H2O Hex. 6 : _P_63
7.DG.15 Siwaqaite Ca6Al2(CrO4)3(OH)12 · 26H2O Trig. 3_m_ : P_31_c
7.DG.15 Chiyokoite Ca3Si(CO3)[B(OH)4]O (OH)5 · 12H2O Hex. 6 : _P_63
7.DG.20 Rapidcreekite Ca2(SO4)(CO3) · 4H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P b c n
7.DG.25 Tatarskite Ca6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2O Orth.
7.DG.30 Nakauriite Cu8(SO4)4(CO3)(OH)6 · 48H2O Orth.
7.DG.35 Chessexite (Na,K)4Ca2(Mg,Zn)3Al8(SO4)10(SiO4)2 · 40H2O Orth.
7.DG.40 Carlosruizite K6(Na,K)4Na6Mg10(SeO4)12(IO3)12 · 12H2O Trig. 3_m_ _(_32/m ) : _P_3_c_1
7.DG.40 Fuenzalidaite K6(Na,K)4Na6Mg10(SO4)12(IO3)12 · 12H2O Trig. 3_m_ _(_32/m ) : _P_3_c_1
7.DG.45 Chelyabinskite (Ca,Mg)3(SO4,CO3)2[Si(OH)6] · 9H2O (?) Orth.
7.DG.55 Ramazzoite [Mg8Cu12(PO4)(CO3)4(OH)24(H2O)20][(H0.33SO4)3(H2O)36] Iso. 43_m_ : P_43_m
7.DG.60 Witzkeite Na4K4Ca(NO3)2(SO4)4 · 2H2O Mon. 2/m : _B_2/b

Fluorescence of CharlesiteHide

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Pale violet to pale green in SW
weaker in LW

Other InformationHide

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Health Risks:

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

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References for CharlesiteHide

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Reference List:

Dunn, Pete J., Peacor, Donald R., Leavens, Peter B., Baum, John L. (1983) Charlesite, a new mineral of the ettringite group, from Franklin, New Jersey. American Mineralogist, 68 (9-10) 1033-1037

Kusachi, Isao, Shiraishi, Naoko, Shimada, Kazumasa, Ohnishi, Masayuki, Kobayashi, Shoichi (2008) CO3-rich charlesite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 103 (1) 47-51 doi:10.2465/jmps.070827a

Localities for CharlesiteHide

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This 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.

Locality ListHide

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- 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.

Germany
Rhineland-Palatinate Mayen-Koblenz Vordereifel Ettringen ⓘ Caspar quarry Schäfer (2016)
Japan
Okayama Prefecture Takahashi City Bitchū Fuka ⓘ Fuka mine Tanimoto et al (2001) +1 other reference
Norway
Trøndelag Orkland Meldal Grutsæter ⓘ Nyplassen Jørgensen et al. (2001)
Romania
Brașov County ⓘ Racoş (Racoşul de Jos) Szakáll
ⓘ Basalt quarry Szakáll et al. (2010)
Slovakia
Prešov Region Vranov nad Topľou District Vechec ⓘ Vechec quarry Ďuďa
South Africa
Northern Cape John Taolo Gaetsewe District Municipality Joe Morolong Local Municipality N'Chwaning Mines ⓘ N'Chwaning II Mine ? Cairncross et al. (1995)
ⓘ Wessels Mine ? Cairncross et al. (1995)
ⓘ Kalahari manganese field ? Gutzmer (1996)
USA (TL)
New Jersey Sussex County Franklin ⓘ Franklin Mine (TL) Dunn et al. (1983) +1 other reference
ⓘ Mill site dump FOMS Millsite Committee (1986)
ⓘ Parker shaft Richard Gunter