Cianciulliite (original) (raw)
A valid IMA mineral species
About CianciulliiteHide
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Formula:
Mn(Mg,Mn)2Zn2(OH)10 · 2-4H2O
Colour:
Dark reddish-brown nearly black
Lustre:
Sub-Adamantine, Vitreous, Pearly, Dull
Specific Gravity:
2.87 (Calculated)
Crystal System:
Monoclinic
Name:
Named by Pete J. Dunn, Joel D. Grice, Alan J. Criddle, and Chris J. Stanley (1991) after Mr. John Cianciulli [January 18, 1949 New Jersey, USA - January 13, 2005 Wantage, Sussex County, New Jersey, USA]. He was the second Curator of the Franklin Mineral Museum, Youth Vocational Counselor, lifelong mineral collector, and former Treasurer of the Franklin-Ogdensburg Mineralogical Society.
Dark red-brown nearly black bright rectangular plates to 1 mm or less. An extremely rare mineral.
Note: Fakes have been sold (see http://www.mindat.org/mesg-6-66563.html). Flakes of dark brown mica in pill capsules have been fraudulently sold as "cianciulliite". Cianciulliite does not resemble a mica in appearance.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:1051:7
dcc5dfc3-dab5-4bfe-a24a-916ffab65638
IMA Classification of CianciulliiteHide
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IMA Formula:
Mg2Mn2+Zn2(OH)10 · 2-4H2O
Type description reference:
Dunn, Pete J., Grice, Joel D., Criddle, Alan, Stanley, Chris (1991) Cianciulliite, a new magnesium manganese zinc hydroxide from Franklin, New Jersey. American Mineralogist, 76 (9-10) 1708-1710
Classification of CianciulliiteHide
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4.FL.55
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
6.2.13.1
6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
2 : X(OH)2
7.18.13
7 : Oxides and Hydroxides
18 : Oxides of Mn
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 |
|---|---|---|
| Cia | 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 CianciulliiteHide
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Sub-Adamantine, Vitreous, Pearly, Dull
Colour:
Dark reddish-brown nearly black
Density:
2.87 g/cm3 (Calculated)
Optical Data of CianciulliiteHide
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RI values:
_n_α = 1.760 _n_γ = 1.920
δ = 0.160
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Reflectivity:
| Wavelength | R1 | R2 |
|---|---|---|
| 400nm | 9.52% | 9.72% |
| 420nm | 9.13% | 9.30% |
| 440nm | 8.85% | 8.97% |
| 460nm | 8.65% | 8.74% |
| 480nm | 8.44% | 8.56% |
| 500nm | 8.34% | 8.44% |
| 520nm | 8.23% | 8.35% |
| 540nm | 8.09% | 8.25% |
| 560nm | 8.06% | 8.21% |
| 580nm | 8.01% | 8.20% |
| 600nm | 7.98% | 8.18% |
| 620nm | 7.96% | 8.18% |
| 640nm | 7.98% | 8.18% |
| 660nm | 7.98% | 8.18% |
| 680nm | 7.93% | 8.15% |
| 700nm | 7.90% | 8.14% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 9.72%.
R1 shown in black, R2 shown in red
Internal Reflections:
red-orange
Chemistry of CianciulliiteHide
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Mindat Formula:
Mn(Mg,Mn)2Zn2(OH)10 · 2-4H2O
Crystallography of CianciulliiteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 15.405 Å, b = 6.344 Å, c = 5.562 Å
β = 101.23°
Ratio:
a:b:c = 2.428 : 1 : 0.877
Unit Cell V:
533.16 ų (Calculated from Unit Cell)
Morphology:
Ciainciulliite is dominantly pinacoidal and resembles a flat rectangular prism with large {100}.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0001413 | Cianciulliite | Grice J D, Dunn P J (1991) The crystal structure of cianciulliite, Mn(Mg,Mn)2Zn2(OH)10*2-4H2O American Mineralogist 76 1711-1747 |  |
1991 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.61 Å | (100) |
| 5.47 Å | (20) |
| 3.96 Å | (50) |
| 3.45 Å | (30) |
| 2.997 Å | (40) |
| 2.745 Å | (60) |
| 2.673 Å | (30) |
Comments:
natural material
Geological EnvironmentHide
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Type Occurrence of CianciulliiteHide
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General Appearance of Type Material:
Found as one of the latest species with cahnite. The nearly black cianciulliite crystals have a poor color contrast with the manganese oxide association, but the luster should be bright.
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, Ontario, Canada, number 56469.
National Museum of Natural History (Smithsonian), Washington, D.C., USA, number M03074.
Geological Setting of Type Material:
Fracture fillings in zinc-silicate and oxide carbonate-hosted deposit
Associated Minerals at Type Locality:
Reference:
Dunn, P.J., Grice, J.D., Criddle, A., Stanley, C. (1991) Cianciulliite, a new magnesium manganese zinc hydroxide from Franklin, New Jersey. American Mineralogist: 76: 1708-1710.
Synonyms of CianciulliiteHide
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Other Language Names for CianciulliiteHide
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Related Minerals - Strunz-mindat GroupingHide
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| 4.FL. | Trébeurdenite | Fe2+2Fe3+4O2(OH)10CO3 · 3H2O | Trig. 3_m_ _(_32/m ) : R_3_m |
|---|---|---|---|
| 4.FL. | Mariakrite | [Ca4Al2(OH)12(H2O)4][Fe2S4] | Tric. 1 : _P_1 |
| 4.FL.05 | Woodallite | Mg6Cr2(OH)16Cl2 · 4H2O | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.FL.05 | Iowaite | Mg6Fe3+2(OH)16Cl2 · 4H2O | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.FL.05 | Jamborite | Ni2+1-xCo3+x(OH)2-x(SO4)x · nH2O | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.FL.05 | Meixnerite | Mg6Al2(OH)16(OH)2 · 4H2O | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.FL.05 | Muskoxite | Mg7Fe4O13 · 10H2O | Trig. 3_m_ _(_32/m ) |
| 4.FL.05 | Fougèrite | Fe2+4Fe3+2(OH)12[CO3] · 3H2O | Trig. 3_m_ _(_32/m ) : R_3_m |
| 4.FL.05 | Mössbauerite | Fe3+6O4(OH)8[CO3] · 3H2O | Trig. 3 |
| 4.FL.05 | Dritsite | Li2Al4(OH)12Cl2 · 3H2O | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m c m |
| 4.FL.10 | Hydrocalumite | Ca4Al2(OH)12(Cl,CO3,OH)2 · 4H2O | Mon. 2 : _P_21 |
| 4.FL.15 | Kuzelite | Ca4Al2(OH)12[SO4] · 6H2O | Trig. |
| 4.FL.20 | Aurorite | Mn2+Mn4+3O7 · 3H2O | Trig. 3 : _R_3 |
| 4.FL.20 | Chalcophanite | ZnMn4+3O7 · 3H2O | Trig. 3 : _R_3 |
| 4.FL.20 | Ernienickelite | NiMn3O7 · 3H2O | Trig. 3 : _R_3 |
| 4.FL.20 | Jianshuiite | (Mg,Mn,Ca)Mn3O7 · 3H2O | Trig. 3 : _R_3 |
| 4.FL.25 | Woodruffite | Zn2+x/2(Mn4+1-xMn3+x)O2 · yH2O | Mon. 2/m : _B_2/m |
| 4.FL.30 | Asbolane | (Ni,Co)2-xMn4+(O,OH)4 · nH2O | Hex. |
| 4.FL.30 va | Lampadite | Cu, Mn, O, H | |
| 4.FL.35 | Buserite | Na4Mn14O27 · 21H2O | |
| 4.FL.40 | Ranciéite | (Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O | Trig. 3 : _P_3 |
| 4.FL.40 | Takanelite | (Mn,Ca)Mn4O9 · H2O | Hex. |
| 4.FL.45 | Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O | Mon. 2/m : _B_2/m |
| 4.FL.60 | Jensenite | Cu3[TeO6] · 2H2O | Mon. 2/m : _P_21/m |
| 4.FL.65 | Leisingite | Cu2MgTe6+O6 · 6H2O | Trig. 3 : _P_3 |
| 4.FL.70 | Akdalaite | Al10O14(OH)2 | Hex. |
| 4.FL.75 | Cafetite | CaTi2O5 · H2O | Mon. 2/m : _P_21/b |
| 4.FL.80 | Mourite | UMo5O12(OH)10 | Mon. |
| 4.FL.85 | Deloryite | Cu4(UO2)(MoO4)2(OH)6 | Mon. 2/m : _B_2/m |
| 4.FL.90 | Lagalyite | Ca2xMn1-xO2 · 1.5-2H2O | Mon. |
| 4.FL.95 | Tunnerite (of Cornu) | ||
| 4.FL.100 | Carbocalumite | Ca4Al2(OH)12(CO3) · 6H2O | Trig. 3_m_ _(_32/m ) : R_3_c |
| 4.FL.100 | Mampsisite | Ca4Al2(CO3)(OH)12 · 5H2O | Tric. |
Fluorescence of CianciulliiteHide
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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.
Internet Links for CianciulliiteHide
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References for CianciulliiteHide
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Reference List:
Dunn, Pete J., Grice, Joel D., Criddle, Alan, Stanley, Chris (1991) Cianciulliite, a new magnesium manganese zinc hydroxide from Franklin, New Jersey. American Mineralogist, 76 (9-10) 1708-1710
Dunn, Pete J., Grice, Joel D., Criddle, Alan, Stanley, Chris (1991) Cianciulliite, a new magnesium manganese zinc hydroxide from Franklin, New Jersey. American Mineralogist, 76 (9-10) 1708-1710
Localities for CianciulliiteHide
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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.
| USA (TL) | |
|---|---|
| New Jersey Sussex County Franklin ⓘ Franklin Mine (TL) |
Dunn et al. (1991) +1 other reference |