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Phoenicochroite

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Formula:
Pb2(CrO4)O
Colour:
Dark red, bright red
Lustre:
Adamantine, Resinous
Hardness:
Specific Gravity:
5.75
Crystal System:
Monoclinic
Name:
From the Greek φοίυικος for "deep red" and χρόα for "colour," in allusion to its colour.
Isostructural with:
This page provides mineralogical data about Phoenicochroite.


Hide all sections | Show all sections

Classification of PhoenicochroiteHide

Approved, 'Grandfathered' (first described prior to 1959)
Approval Year:
1980
7.FB.05

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
F : Chromates
B : With additional O,V, S, Cl
Dana 7th ed.:
35.1.2.1
35.1.2.1

35 : ANHYDROUS CHROMATES
1 : A2XO4
27.2.6

27 : Sulphites, Chromates, Molybdates and Tungstates
2 : Chromates

Physical Properties of PhoenicochroiteHide

Adamantine, Resinous
Transparency:
Translucent
Comment:
Glimmering
Colour:
Dark red, bright red
Comment:
Turns lemon-yellow on exposure.
Streak:
Brick-red
Hardness:
2½ on Mohs scale
Cleavage:
Perfect
Perfect in one unspecified direction.
Density:
5.75 g/cm3 (Measured)    

Optical Data of PhoenicochroiteHide

Type:
Biaxial (+)
RI values:
nα = 2.380 nβ = 2.440 nγ = 2.650
2V:
Measured: 58° , Calculated: 62°
Max Birefringence:
δ = 0.270
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
relatively strong

Chemical Properties of PhoenicochroiteHide

Formula:
Pb2(CrO4)O
IMA Formula:
Pb2O(CrO4)

Crystallography of PhoenicochroiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 14 Å, b = 5.67 Å, c = 7.13 Å
β = 115.22°
Ratio:
a:b:c = 2.469 : 1 : 1.257
Unit Cell V:
512.03 ų (Calculated from Unit Cell)
Morphology:
Crystals tabular and imperfect, often reticularly intergrown. Massive; thin coatings.

Type Occurrence of PhoenicochroiteHide

Synonyms of PhoenicochroiteHide

Other Language Names for PhoenicochroiteHide

Varieties of PhoenicochroiteHide

BerezoviteDiscredited - shown to be altered phoenicochroite by S.A. Williams (1974).

Common AssociatesHide

Associated Minerals Based on Photo Data:
Hemihedrite22 photos of Phoenicochroite associated with Hemihedrite on mindat.org.
Vauquelinite7 photos of Phoenicochroite associated with Vauquelinite on mindat.org.
Schwartzembergite7 photos of Phoenicochroite associated with Schwartzembergite on mindat.org.
Crocoite6 photos of Phoenicochroite associated with Crocoite on mindat.org.
Iranite6 photos of Phoenicochroite associated with Iranite on mindat.org.
Mimetite4 photos of Phoenicochroite associated with Mimetite on mindat.org.
Galena4 photos of Phoenicochroite associated with Galena on mindat.org.
Seeligerite2 photos of Phoenicochroite associated with Seeligerite on mindat.org.
Wulfenite2 photos of Phoenicochroite associated with Wulfenite on mindat.org.
Wickenburgite2 photos of Phoenicochroite associated with Wickenburgite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.FB.10SantanaitePb11(CrO4)O12Hex. 6 2 2 : P63 2 2
7.FB.15Wattersite(Hg+2)2Hg2+(CrO4)O2Mon. 2/m : B2/b
7.FB.20Deanesmithite(Hg+2)Hg2+3(CrO4)S2OTric.
7.FB.25EdoyleriteHg2+3(CrO4)S2Mon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

27.2.1TarapacáiteK2(CrO4)Orth. mmm (2/m 2/m 2/m)
27.2.2LópeziteK2Cr2O7Tric. 1 : P1
27.2.3ChromatiteCaCr6+O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
27.2.4HashemiteBa(CrO4)Orth. mmm (2/m 2/m 2/m) : Pnma
27.2.5CrocoitePb(CrO4)Mon. 2/m : P21/b
27.2.7SantanaitePb11(CrO4)O12Hex. 6 2 2 : P63 2 2
27.2.8IranitePb10Cu(CrO4)6(SiO4)2(OH)2Tric.
27.2.9HemihedritePb10Zn(CrO4)6(SiO4)2(OH)2Tric.

Other InformationHide

Notes:
Soluble in HCl with separation of lead chloride.
Health Risks:
Chromate minerals contain the carcinogenic and mutagenic chromate ion. Always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest. Do not pour chromate-containing solutions down the drain.

References for PhoenicochroiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hermann (1833) Annalen der Physik, Halle, Leipzig: 28: 162 (as Melanochroit).
Thomson, T. (1836) Outlines of Mineralogy, Geology, and Mineral Analysis. 2 volumes, London (as Subsesquichromate of Lead).
Glocker, E.F. (1839) Handbuch der Mineralogie, 2nd. edition, Nürnberg: 612 (as Phœnikochroit).
Haidinger, Wm. (1845): 504 (as Phönicit).
Petterd, W.F. (1910) Catalogue of the Minerals of Tasmania. 221pp., Hobart: 114.
Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 119.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 649-650.
Williams, S.A., et al (1970), A study of Phoenichchroite-Its structure and properties, American Mineralogist: 55: 784-792.
Bulletin de la Société française de Minéralogie et de Cristallographie (1980): 103: 469.
Klein, W. & Jansen, M. (2010): Refinement of the crystal structure of dilead(II) oxide chromate(VI), Pb2O(CrO4). Z. Kristallogr. NCS 225, 219-220. [http://zkrist_ncs.cpfs.mpg.de/pdf225-2/094_710043.pdf]

Internet Links for PhoenicochroiteHide

Localities for PhoenicochroiteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Tyrol
    • North Tyrol
      • Inn valley
        • Brixlegg - Schwaz area
Kolitsch, U. (2013): 1799) Anglesit, Brochantit, Calcit, Callaghanit, Connellit, Cuprit, Diopsid, Elyit, Forsterit, Kupfer, Lithargit, Magnesiochromit, Malachit, Monohydrocalcit, Phoenicochroit, Rouait und Willemit in Schlacken der Montanwerke Brixlegg, Tirol. Pp. 111-114 in Niedermayr, G. et al. (2013): Neue Mineralfunde aus Österreich LXII. Carinthia II, 203./123., 91-146.
Chile
 
  • Antofagasta Region
    • Antofagasta Province
      • Cerro Palestina
        • Estación Cerro Negro
          • Magallanes district
Samples analysed by Dr. Jochen Schluter (Hamburg University), Germany.
Peebles F./Ruiz Fuller C.(1988); "Yacimientos Metalíferos de Chile", Fondecyt, Stgo. de Chile.
      • Sierra Gorda District
M.Dini & A.Molina collection
        • Caracoles
In the collections of Brent Thorne, Christian Rewitzer, and Sandro Maggio.
Samples analysed by Dr. Jochen Schluter (Hamburg University), Germany.
    • Tocopilla Province
      • Sierra Gorda district
        • Caracoles
Peebles F./Ruiz Fuller C.(1988); "Yacimientos Metalíferos de Chile", Fondecyt, Stgo. de Chile.
      • Tocopilla District
maurizio dini collection
Germany
 
  • Saxony
    • Glauchau
      • Callenberg
Lapis, 16 (9), 13-26.
Iran
 
  • Esfahan Province (Isfahan Province; Aspadana Province)
    • Nain County (Nayin County)
      • Anarak District
Adib, D. and Ottemann, J. (1970): Mineralium Deposita, 5, 86-93
  • Yazd Province
    • Nayband (Neyband)
Bariand, P. & Poullen, J.F. (1980): Rare Chromates from Seh-Changi, Iran. Mineralogical Record 11, 293-297
Italy
 
  • Campania
    • Naples Province
      • Somma-Vesuvius Complex
Russo M., Campostrini I., Demartin F. (2014): Fumarolic minerals after the 1944 Vesuvius eruption. Plinius, 40, 306.
Namibia
 
  • Erongo Region
    • Swakopmund District
      • Namib-Naukluft National Park
Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern, 338 pp. (in English)
Russia (TL)
 
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Ekaterinburg (Sverdlovsk)
          • Berezovskii (Berezovskii Zavod)
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 650; Clark, 1993, "Hey's Mineral Index".; Cook, R. B. (2007). Crocoite: Dundas, Tasmania, Australia. Rocks & Minerals, 82(1), 50-54
South Africa
 
  • Mpumalanga Province
    • Nkangala District
      • Delmas
Minerals of South Africa
UK
 
  • Scotland
    • Strathclyde
      • South Lanarkshire
        • Leadhills
          • Wanlock Dod
Temple, A.K. (1955) Trans. R. Soc. Edinb. 63, 104.; Livingstone, A. and Macpherson, H.G. (1983) Fifth supplementary list of British minerals (Scottish). Mineralogical Magazine, vol. 47, n° 342, p. 99-105.
USA
 
  • Arizona
    • Gila Co.
      • Dripping Spring Mts
        • Banner District
          • Christmas area
            • Christmas
Raman analyzed at the University of Arizona.
    • Maricopa Co.
      • Belmont Mts
        • Wickenburg area
C. Lemanski, Jr.
      • Big Horn Mts
        • Osborn District
          • Hummingbird Spring
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 103, 420; Williams, S.A. (1968), Wickenburgite, a new mineral from Arizona, Am.Min.: 53: 1433-1438; Williams, S.A. & J.W. Anthony (1970), Hemihedrite, a new mineral from Arizona, Am.Min.: 55: 1088-1102; Williams, S.A., et al (1970), A study of Phoenichchroite-Its structure and properties, Am.Min.: 55: 784-792.
          • Tonopah
            • Belmont Mountain
collected by and in the collection of Eckhard D. Stuart
              • Tiger Wash
Collected in the presence of & verified by C. Lemanski, Jr.
Ron Layton
Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 67.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 327.
      • Vulture Mts
        • Vulture District
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 327; Silliman, B. (1881), Mineralogical notes, Amer.Jour.Sci.: 22: 198-205; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 67.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 247, 327; Williams, S.A. (1968), Wickenburgite, a new mineral from AZ, Am.Min.: 53: 1433-1438; Williams, S.A. & J.W. Anthony (1970), Hemihedrite, a new mineral from AZ, Am.Min.: 55: 1088-1102; Williams, S.A., et al (1970), A study of phoenicochroite-Its structure and properties, Am.Min.:: 55: 784-792.
          • Vulture
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 327; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 67.
      • Wickenburg
No reference listed
    • Pinal Co.
      • Mammoth District
        • Tiger
          • St. Anthony deposit
Analyzed at the University of Western Sydney, Austalia.
      • Tortilla Mts
        • Ripsey District
          • Ripsey Hill area
Anthony, J.W., et al (1995), Mineralogy of Arizona (1995), 3rd.ed.: 247; Williams, S.A. & J.W. Anthony (1970), Hemihedrite, a new mineral from AZ, Am.Min.: 55: 1088-1102.
    • Yavapai Co.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 327.
  • Nevada
    • Clark Co.
      • Eldorado Mts
        • Eldorado District (Colorado District)
NBMG Spec. Pub. 31 Minerals of Nevada
    • Esmeralda Co.
NBMG Spec. Pub. 31 Minerals of Nevada
NBMG Spec. Pub. 31 Minerals of Nevada
    • Lander Co.
NBMG Spec. Pub. 31 Minerals of Nevada
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