SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography


This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About PieczkaiteHide

4 - 5
Specific Gravity:
3.783 (Calculated)
Crystal System:
After Adam Pieczka (born September 8, 1957, at Wilamowice near Bielsko-Biała, Silesia Province, Poland), Assistant Professor in the Department of Mineralogy, Petrography, and Geochemistry, Faculty of Geology, Geophysics, and Environmental Protection, Kraków, Poland, for his extensive contributions to the crystal chemistry of pegmatite minerals.
Isostructural with:
This page provides mineralogical data about Pieczkaite.

Classification of PieczkaiteHide

Approval Year:

Pronounciation of PieczkaiteHide

PlayRecorded byCountry
Łukasz KruszewskiPoland

Physical Properties of PieczkaiteHide

4 - 5 on Mohs scale
None Observed
None observed
3.783 g/cm3 (Calculated)

Optical Data of PieczkaiteHide

Uniaxial (-)
RI values:
nω = 1.694 - 1.698 nε = 1.690 - 1.694
Max Birefringence:
δ = 0.004
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of PieczkaiteHide

Emperical Formula (of original material):
(Mn3. 36Fe0.20Ca1.40)sum4.96 (P1.01O4)3(Cl0.62OH0.38)1.00

Crystallography of PieczkaiteHide

Crystal System:
Class (H-M):
6/m - Dipyramidal
Space Group:
Cell Parameters:
a = 9.504(4) Å, c = 6.347(3) Å
a:c = 1 : 0.668
Unit Cell V:
496.5 ų
Narrow veins to ~25 μm in apatite.

Crystal StructureHide

Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
CIF File    Best | x | y | z | a | b | c
Stop | Start
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020469PieczkaiteTait K, Ball N A, Hawthorne F C (2015) Pieczkaite, ideally Mn5(PO4)3Cl, a new apatite-supergroup mineral from Cross Lake, Manitoba, Canada: Description and crystal structure American Mineralogist 100 1047-10522015Cross Lake, Manitoba, Canada0293
0020231PieczkaiteEngel G, Pretzsch J, Gramlich V, Baur W H (1975) The crystal structure of hydrothermally grown manganese chlorapatite, Mn5(PO4)3Cl0.9(OH)0.1 Acta Crystallographica B31 1854-18601975synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
3.453 Å(15)
3.174 Å(24)
2.794 Å(100)
2.744 Å(88)
2.639 Å(34)
2.514 Å(25)
1.853 Å(25)
1.750 Å(22)
From Type Description.

Type Occurrence of PieczkaiteHide

General Appearance of Type Material:
As small patches and narrow veins in large crystals of apatite and (Mn,Cl)-bearing apatite in phosphate pods in the quartz core of a granitic pegmatite.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Department of Natural History (Mineralogy), Royal Ontario Museum, 100 Queens Park, Toronto, Ontario M5S 2C6, Canada, catalogue number M56483
Geological Setting of Type Material:
Granite pegmatite
Associated Minerals at Type Locality:

Synonyms of PieczkaiteHide

Relationship of Pieczkaite to other SpeciesHide

Other Members of this group:
AlforsiteBa5(PO4)3ClHex. 6/m : P63/m
ChlorapatiteCa5(PO4)3ClHex. 6/m : P63/m
FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
HydroxylapatiteCa5(PO4)3(OH)Hex. 6/m : P63/m
HydroxylpyromorphitePb5(PO4)3(OH)Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
JohnbaumiteCa5(AsO4)3OHHex. 6/m : P63/m
MimetitePb5(AsO4)3ClHex. 6/m : P63/m
PyromorphitePb5(PO4)3ClHex. 6/m : P63/m
StronadelphiteSr5(PO4)3FHex. 6/m : P63/m
SvabiteCa5(AsO4)3FHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
Unnamed (F-analogue of Pyromorphite)Pb5(PO4)3F
Unnamed (OH-analogue of Mimetite)Pb5(AsO4)3(OH)
VanadinitePb5(VO4)3ClHex. 6/m : P63/m

Fluorescence of PieczkaiteHide

Does not fluoresce under ultraviolet light

Other InformationHide

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

References for PieczkaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Tait, K., Hawthorne, F.C., Ball, N. and Abdu, Y. (2014) Pieczkaite, IMA 2014-005. CNMNC Newsletter No. 20, June 2014, page 555; Mineralogical Magazine, 78, 549-558.
Tait, K., Ball, N.A. and Hawthorne, F. (2015): Pieczkaite, ideally Mn5(PO4)3Cl, a new apatite-supergroup mineral from Cross Lake, Manitoba, Canada: Description and crystal structure. American Mineralogist, 100, 1047-1052

Internet Links for PieczkaiteHide

Localities for PieczkaiteHide

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.
Canada (TL)
  • Manitoba
    • Cross Lake
      • North Group
Tait, K., Hawthorne, F.C., Ball, N. and Abdu, Y. (2014) Pieczkaite, IMA 2014-005. CNMNC Newsletter No. 20, June 2014, page 555. Mineralogical Magazine: 78: 549-558.; Tait, K., Ball, N.A., Hawthorne, F. (2015) Pieczkaite, ideally Mn5(PO4)3Cl, a new apatite-supergroup mineral from Cross Lake, Manitoba, Canada: Description and crystal structure. American Mineralogist: 100: 1047-1052.
  • Lower Silesian Voivodeship
    • Ząbkowice Śląskie County
      • Gmina Ząbkowice Śląskie
        • Szklary
Pieczka, A., Włodek, A., Gołębiowska, B., Szełęg, E., Szuszkiewicz, A., Ilnicki, S., Nejbert, K., Turniak, K. (2015): Phosphate-bearing pegmatites in the Góry Sowie Block and adjacent areas, Sudetes, SW Poland. 7th International Symposium on Granitic Pegmatites, PEG 2015 Książ, Poland. Abstracts: 77-78; Pieczka, A., Biagioni, C., Gołębiowska, B., Jeleń, P., Pasero, M., & Sitarz, M. (2018). Parafiniukite, Ca2Mn3 (PO4) 3Cl, a New Member of the Apatite Supergroup from the Szklary Pegmatite, Lower Silesia, Poland: Description and Crystal Structure. Minerals, 8(11), 485.
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © and the Hudson Institute of Mineralogy 1993-2020, except where stated. Most political location boundaries are © OpenStreetMap contributors. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 29, 2020 05:20:46 Page generated: October 10, 2020 19:37:48
Go to top of page