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Charmarite

A valid IMA mineral species
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07592010017271929014979.jpg
Charmarite, etc.

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
04170510017271928567753.jpg
Charmarite-2H

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
06350100017271929057027.jpg
Charmarite, etc.

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
07592010017271929014979.jpg
Charmarite, etc.

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
00418160017868298438608.jpg
Charmarite-2H

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
04247480017868298465539.jpg
Charmarite, etc.

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
07592010017271929014979.jpg
Charmarite, etc.

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
04170510017271928567753.jpg
Charmarite-2H

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
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About CharmariteHide

03619230017271928709627.jpg
Charles and Marcelle Weber
Formula:
Mn2+4Al2(OH)12[CO3] · 3H2O
Lustre:
Vitreous
Hardness:
2 - 2½
Crystal System:
Hexagonal
Name:
Named in 1997 by George Y. Chao and Robert A. Gault for Charles [1917-2003] and Marcelle [September 19, 1918 - 2003] Weber, amateur mineralogists of Guilford, Connecticut, USA, who contributed extensively to the knowledge of Mt. Saint-Hilaire, and who also found the mineral.
Found as the polytypes charmarite-2H and charmarite-3T.


Unique IdentifiersHide

Mindat ID:
7582
Long-form identifier:
mindat:1:1:7582:0

IMA Classification of CharmariteHide

IMA status:
Approved
IMA Formula:
Mn2+4Al2(OH)12CO3·3H2O
Approval year:
1998
First published:
1997

Classification of CharmariteHide

Strunz-mindat (2026):
5.DA.40

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
A : With medium-sized cations
Dana 8th ed.:
16b.7.16.1

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
7 : Miscellaneous

Mineral SymbolsHide

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

SymbolSourceReference for Standard
CharIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of CharmariteHide

Lustre:
Vitreous
Transparency:
Transparent
Streak:
White
Hardness:
2 - 2½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{0001}
Fracture:
Irregular/Uneven

Optical Data of CharmariteHide

Type:
Uniaxial (-)

Chemistry of CharmariteHide

Mindat Formula:
Mn2+4Al2(OH)12[CO3] · 3H2O
Element Weights:
Element% weight
O48.659 %
Mn37.129 %
Al9.118 %
H3.065 %
C2.029 %

Calculated from ideal end-member formula.
Elements listed:
Al, C, H, Mn, O - search for minerals with similar chemistry

Crystallography of CharmariteHide

Polytype:
Formula:
Crystal System:
Class (H-M)
Space Group:
Space Group Setting:
Cell Parameters:
Ratio:
Unit Cell Volume (calc):
Z:
Comment:
Charmarite-2HCharmarite-3T
Mn2+4Al2(CO3)(OH)12 · 3H2OMn2+4Al2(CO3)(OH)12 · 3H2O
Hexagonal Trigonal 
622 - Trapezohedral32 - Trapezohedral
P6322 
P6322 
a = 10.985(3) Å, c = 15.10(2) Å
a = 10.985(3) Å, c = 22.63(3) Å
a:c = 1 : 1.375a:c = 1 : 2.06
V 1,578.00 ų
(Calculated from Unit Cell)		V 2,364.91 ų
(Calculated from Unit Cell)
46
 P3112 or P32l2

X-Ray Powder DiffractionHide

Type Occurrence of CharmariteHide

Type Locality:
ⓘ Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
General Appearance of Type Material:
Charmarite-2H: Tabular hexagonal crystals, commonly stacked along [0001] to form pagoda like aggregates. Also as thin mica-like plates, sometimes forming star-shaped aggregates.

Charmarite-3T: Thin {0001} plates forming caps at the free end of prismatic crystals or as stacked tabular crystals that taper off at the other end to give an overall appearance of a nail.
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, Ontario, Canada, numbers CMNMI81542, CMNMI81543, CMNMI81544 (charmarite-2H) and CMNM 81545 (charmarite-3T).
Royal Ontario Museum, Toronto, Ontario, Canada, numbers M45L94, M46765, M46766 (charmaite-2H) and M46767 (charmarite-3T).
Geological Setting of Type Material:
Late-stage hydrothermal minerals in miarolitic cavities and in pegmatitic bodies within nepheline syenite.
Associated Minerals at Type Locality:
AnalcimeNatroliteMicroclineAegirineAstrophyllite
'Tetranatrolite'CatapleiiteCalciteSideriteRhodochrosite
BurbankiteKutnohorite

Synonyms of CharmariteHide

Other Language Names for CharmariteHide

German:Charmarit
Spanish:Charmarita

Relationship of Charmarite to other SpeciesHide

Member of:
Quintinite Group > Hydrotalcite Supergroup
Other Members of Quintinite Group:
CaresiteFe2+4Al2(OH)12[CO3] · 3H2OTrig. 32 : P3112
ChlormagaluminiteMg4Al2(OH)12Cl2 · 3H2OHex. 6/mmm(6/m2/m2/m) : P63/mcm
ComblainiteNi4Co2(OH)12[CO3] · 3H2OTrig.
LiudongshengiteZn4Cr2(OH)12(CO3) · 3H2OTrig. 3m(32/m) : R3m
QuintiniteMg4Al2(OH)12(CO3) · 3H2OHex. 622 : P6322
'Unnamed (Zn-analogue of Chlormagaluminite)'Zn4Al2(OH)12Cl2 · 2H2O
ZaccagnaiteZn4Al2(OH)12[CO3] · 3H2OHex.

Common AssociatesHide

Associations Based on Photo Data:
3 photos of Charmarite associated with StrontianiteSrCO3
2 photos of Charmarite associated with NephelineNa3K(Al4Si4O16)
1 photo of Charmarite associated with QuartzSiO2
1 photo of Charmarite associated with Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2 · 3H2O

Related Minerals - Strunz-mindat GroupingHide

5.DA.AlexkhomyakoviteK6(Ca2Na)(CO3)5Cl · 6H2OHex. 6/mmm(6/m2/m2/m) : P63/mcm
5.DA.AmoraiteCa12Al6(OH)36(CO3)2(SO3) · 15H2O Tric. 1 : P1
5.DA.05DypingiteMg5(CO3)4(OH)2 · 5H2OMon. 2 : P21
5.DA.05'UM1986-10-CO:ClHMgMnZn (also called Mineral F, Dunn, 1995)'Mg5(Zn,Mn)3(CO3)2(OH,Cl)12 · H2O
5.DA.05'UM1987-01-CO:HMgS'Mg4(CO3)2(OH)4 · 6H2O ?Mon.
5.DA.05GiorgiositeMg5(CO3)4(OH)2 · 5-6H2O
5.DA.05HydromagnesiteMg5(CO3)4(OH)2 · 4H2OMon. 2/m : P21/b
5.DA.05WidgiemoolthaliteNi5(CO3)4(OH)2 · 5H2OMon. 2/m : P21/b
5.DA.10ArtiniteMg2(CO3)(OH)2 · 3H2OMon. 2/m : B2/m
5.DA.10ChlorartiniteMg2(CO3)(OH)Cl · 2H2OTrig. 3m : R3c
5.DA.10IndigiriteMg2Al2(CO3)4(OH)2 · 15H2O
5.DA.15ZaratiteNi3(CO3)(OH)4 · 4H2O ?Iso.
5.DA.15OtwayiteNi2(CO3)(OH)2 · H2OOrth.
5.DA.20KambaldaiteNaNi4(CO3)3(OH)3 · 3H2OHex. 6 : P63
5.DA.25CallaghaniteCu2Mg2(CO3)(OH)6 · 2H2OMon. 2/m : B2/b
5.DA.30Claraite(Cu,Zn)15(CO3)4(AsO4)2(SO4)(OH)14 · 7H2OTric. 1 : P1
5.DA.35HydroscarbroiteAl14(CO3)3(OH)36 · nH2OTric.
5.DA.35ScarbroiteAl5(CO3)(OH)13 · 5H2OTric.
5.DA.40KarchevskyiteMg18Al9(OH)54Sr2(CO3)9(H2O)6(H3O)5Trig.
5.DA.40'UM1987-05-OH:AlCMg'Mg4Al2(OH)12(CO3,SO4) · 3H2O
5.DA.40QuintiniteMg4Al2(OH)12(CO3) · 3H2OHex. 622 : P6322
5.DA.40CaresiteFe2+4Al2(OH)12[CO3] · 3H2OTrig. 32 : P3112
5.DA.45'Hydrotalcite-2H'Mg6Al2(CO3)(OH)16 · 4H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
5.DA.45'Stichtite-2H'Mg6(Cr,Al)2(CO3)(OH)16 · 4H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
5.DA.45BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2OHex.
5.DA.45ZaccagnaiteZn4Al2(OH)12[CO3] · 3H2OHex.
5.DA.45'Pyroaurite-2H'Mg6Fe3+2(OH)16(CO3) · 4H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
5.DA.45LiudongshengiteZn4Cr2(OH)12(CO3) · 3H2OTrig. 3m(32/m) : R3m
5.DA.45ChlormagaluminiteMg4Al2(OH)12Cl2 · 3H2OHex. 6/mmm(6/m2/m2/m) : P63/mcm
5.DA.50PyroauriteMg6Fe3+2(OH)16[CO3] · 4H2OTrig. 3m(32/m) : R3m
5.DA.50TakoviteNi6Al2(OH)16[CO3] · 4H2OTrig. 3m(32/m) : R3m
5.DA.50ReevesiteNi6Fe3+2(OH)16(CO3) · 4H2OTrig. 3m(32/m) : R3m
5.DA.50KaznakhtiteNi6Co3+2(CO3)(OH)16 · 4H2OTrig. 3 : R3
5.DA.50ComblainiteNi4Co2(OH)12[CO3] · 3H2OTrig.
5.DA.50Marioantofilliite[Cu4Al2(OH)12](CO3) · 3H2OMon. 2/m : B2/m
5.DA.50HydrotalciteMg6Al2(CO3)(OH)16 · 4H2OTrig. 3m(32/m) : R3m
5.DA.50StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig. 3m(32/m) : R3m
5.DA.50DesautelsiteMg6Mn3+2(OH)16[CO3] · 4H2OTrig. 3m(32/m)
5.DA.55CoalingiteMg10Fe3+2(OH)24[CO3] · 2H2OTrig. 3m(32/m) : R3m
5.DA.55Akopovaite Al4Li2(OH)12(CO3)(H2O)3Mon. 2/m : B2/m
5.DA.60ŠlikiteZn2Mg(CO3)2(OH)2 · 4H2OTric. 1 : P1
5.DA.65MarkliteCu5(CO3)2(OH)6 · 6H2OMon. 2/m : P21/b

Fluorescence of CharmariteHide

In UV light:
Not fluorescent.

Other InformationHide

Notes:
Attacked by 1:1 HCl and HNO3 with effervescence, and dissolve in 1:1 H2SO4 with effervescence.
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 CharmariteHide

References for CharmariteHide

Localities for CharmariteHide

Showing 3 localities.

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.
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Locality ListHide

- 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.
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
[Charmarite-2H, Charmarite-3T] Chao et al. (1997)
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