Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
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 ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Rappoldite

A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
05117970014947501187378.jpg
Rappoldite

Rappold Mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany
06653740015895648217549.jpg
Rappoldite

Rappold Mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany
01130420014947501199870.jpg
Rappoldite

Rappold Mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany
05117970014947501187378.jpg
Rappoldite

Rappold Mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany
05788730015895580884387.jpg
Rappoldite

Rappold Mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany
01130420014947501199870.jpg
Rappoldite

Rappold Mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany
05117970014947501187378.jpg
Rappoldite

Rappold Mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany
06653740015895648217549.jpg
Rappoldite

Rappold Mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany
Hide all sections | Show all sections

About RappolditeHide

Formula:
PbCo2(AsO4)2 · 2H2O
Colour:
Light brown to brown-red
Lustre:
Vitreous
Hardness:
4½
Specific Gravity:
5.28 (Calculated)
Crystal System:
Triclinic
Name:
For its discovery locality
Tsumcorite Group.

Co(II) analogue of Helmutwinklerite.


Unique IdentifiersHide

Mindat ID:
7044
Long-form identifier:
mindat:1:1:7044:3
GUID
(UUID V4):
7d8a4375-b789-416b-8004-ea782716ba86

IMA Classification of RappolditeHide

Classification of RappolditeHide

Strunz-mindat (2024):
8.CG.20

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
G : With large and medium-sized cations, RO4:H2O = 1:1

Mineral SymbolsHide

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

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

Physical Properties of RappolditeHide

Lustre:
Vitreous
Transparency:
Transparent
Colour:
Light brown to brown-red
Streak:
Pale brown-yellow
Hardness:
4½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
5.28 g/cm3 (Calculated)

Optical Data of RappolditeHide

Type:
Biaxial (+)
RI values:
nα = 1.850 nβ = 1.870(2) nγ = 1.900(2)
2V:
Measured: 85° (5), Calculated: 80°
Max Birefringence:
δ = 0.050
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v distinct
Optical Extinction:
X ~ || c; Y ~ || [120].

Chemistry of RappolditeHide

Mindat Formula:
PbCo2(AsO4)2 · 2H2O
Elements listed:
As, Co, H, O, Pb - search for minerals with similar chemistry

Crystallography of RappolditeHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 11.190(2) Å, b = 10.548(2) Å, c = 7.593(1) Å
α = 100.38(1)°, β = 109.59(2)°, γ = 98.96(1)°
Ratio:
a:b:c = 1.061 : 1 : 0.72
Unit Cell V:
807.61 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Type material: prismatic or tabular, showing forms {210} and {001}.
Twinning:
By reflection on {230}.

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
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
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014555RappolditeEffenberger H, Krause W, Bernhardt H J, Martin M (2000) On the symmetry of tsumcorite group minerals based on the new species rappoldite and zincgartrellite Mineralogical Magazine 64 1109-11262000Rappold mine, near Schneeberg, Saxony, Germany0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.256 Å(100)
4.670 Å(97)
3.072 Å(56)
2.568 Å(46)
2.890 Å(40)
1.731 Å(38)
2.760 Å(37)
Comments:
Rappold Mine, Germany. Data from the type description.

Geological EnvironmentHide

Type Occurrence of RappolditeHide

Type Locality:
ⓘ Rappold Mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany
General Appearance of Type Material:
Rosette-like aggregates of prismatic to tabular crystals to 2 mm.
Place of Conservation of Type Material:
Bergakademie, Freiberg, Germany, number 79924 (holotype).
Geological Setting of Type Material:
Found on dumps.
Associated Minerals at Type Locality:
QuartzErythriteCobaltaustiniteArseniosiderite
Reference:
Effenberger, H., Krause, W., Bernhardt, H.-J. and Martin, M. (2000): On the symmetry of tsumcorite group minerals based on the new species rappoldite and zincgartrellite. Mineralogical Magazine: 64: 1109-1126.

Synonyms of RappolditeHide

Other Language Names for RappolditeHide

German:Rappoldit
Spanish:Rappoldita

Relationship of Rappoldite to other SpeciesHide

Member of:
Tsumcorite Group
Other Members of this group:
AlumolukrahniteCa[CuAl](AsO4)2(H2O,OH)2Tric. 1 : P1
CabalzariteCaMg2(AsO4)2 · 2H2OMon. 2/m : B2/m
CobaltlotharmeyeriteCaCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
CobalttsumcoritePbCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
FerrilotharmeyeriteCaZnFe3+(AsO4)2(OH) · H2OMon. 2/m : B2/m
GartrellitePbCuFe3+(AsO4)2(OH) · H2OTric. 1 : P1
HelmutwinkleritePbZn2(AsO4)2 · 2H2OTric. 1 : P1
KaliochalciteKCu2(SO4)2[(OH)(H2O)]Mon. 2/m : B2/m
KrettnichitePbMn3+2(VO4)2(OH)2Mon. 2/m : B2/m
LotharmeyeriteCaZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
LukrahniteCaCuFe3+(AsO4)2(OH,H2O)2Tric. 1 : P1
ManganlotharmeyeriteCaMn3+2(AsO4)2(OH)2Mon. 2/m : B2/m
MawbyitePbFe3+2(AsO4)2(OH)2Mon. 2/m : B2/m
MounanaitePbFe3+2(VO4)2(OH,F)2Mon. 2/m : B2/m
NatrochalciteNaCu2(SO4)2(OH) · 2H2OMon. 2/m : B2/m
NickellotharmeyeriteCaNi2(AsO4)2 · 2H2OMon. 2/m : B2/m
NickelschneebergiteBiNi2(AsO4)2(OH) · H2OMon. 2/m : B2/m
NickeltsumcoritePb(Ni,Fe3+)2(AsO4)2(H2O,OH)2Mon. 2/m : B2/m
PhosphogartrellitePbCuFe3+(PO4)2(OH,H2O)2Tric. 1 : P1
SchneebergiteBiCo2(AsO4)2(OH) · H2OMon. 2/m : B2/m
ThometzekitePbCu2+2(AsO4)2 · 2H2OMon. 2/m : B2/m
TsumcoritePbZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
YancowinnaitePbCuAl(AsO4)2OH · H2O Tric. 1 : P1
ZincgartrellitePbZn2(AsO4)2(H2O,OH)2Tric. 1 : P1

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Rappoldite associated with CobaltaustiniteCaCo(AsO4)(OH)

Related Minerals - Strunz-mindat GroupingHide

8.CG.Ca-HuréauliteCaMn5(PO4)4 · 4H2O
8.CG.FluckiteCaMn2+(AsO3OH)2 · 2H2OTric. 1 : P1
8.CG.DondoelliteCa2Fe(PO4)2 · 2H2OTric. 1 : P1
8.CG.AlumolukrahniteCa[CuAl](AsO4)2(H2O,OH)2Tric. 1 : P1
8.CG.05CassidyiteCa2Ni(PO4)2 · 2H2OTric.
8.CG.05CollinsiteCa2Mg(PO4)2 · 2H2OTric. 1 : P1
8.CG.05FairfielditeCa2Mn2+(PO4)2 · 2H2OTric. 1 : P1
8.CG.05GaititeCa2Zn(AsO4)2 · 2H2OTric. 1 : P1
8.CG.05MesseliteCa2Fe2+(PO4)2 · 2H2OTric. 1 : P1
8.CG.05ParabrandtiteCa2Mn2+(AsO4)2 · 2H2OTric. 1 : P1
8.CG.05AnorthoroseliteCa2Co(AsO4)2 · 2H2OTric.
8.CG.05TalmessiteCa2Mg(AsO4)2 · 2H2OTric. 1 : P1
8.CG.05HilliteCa2Zn(PO4)2 · 2H2OTric. 1 : P1
8.CG.05Unnamed (Fe2+-analogue of Parabrandtite)Ca2Fe2+(AsO4)2 · 2H2O
8.CG.10BrandtiteCa2Mn2+(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10RoseliteCa2Co(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10WendwilsoniteCa2Mg(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10ZincroseliteCa2Zn(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10RruffiteCa2Cu(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10Unnamed (Fe2+-analogue of Brandtite)Ca2Fe2+(AsO4)2 · 2H2O
8.CG.15FerrilotharmeyeriteCaZnFe3+(AsO4)2(OH) · H2OMon. 2/m : B2/m
8.CG.15LotharmeyeriteCaZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15MawbyitePbFe3+2(AsO4)2(OH)2Mon. 2/m : B2/m
8.CG.15MounanaitePbFe3+2(VO4)2(OH,F)2Mon. 2/m : B2/m
8.CG.15ThometzekitePbCu2+2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15TsumcoritePbZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15CobaltlotharmeyeriteCaCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15CabalzariteCaMg2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15KrettnichitePbMn3+2(VO4)2(OH)2Mon. 2/m : B2/m
8.CG.15CobalttsumcoritePbCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15NickellotharmeyeriteCaNi2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15ManganlotharmeyeriteCaMn3+2(AsO4)2(OH)2Mon. 2/m : B2/m
8.CG.15SchneebergiteBiCo2(AsO4)2(OH) · H2OMon. 2/m : B2/m
8.CG.15NickelschneebergiteBiNi2(AsO4)2(OH) · H2OMon. 2/m : B2/m
8.CG.15YancowinnaitePbCuAl(AsO4)2OH · H2O Tric. 1 : P1
8.CG.15NickeltsumcoritePb(Ni,Fe3+)2(AsO4)2(H2O,OH)2Mon. 2/m : B2/m
8.CG.15MagnesiofluckiteCaMg(AsO3OH)2(H2O)2Tric. 1 : P1
8.CG.20GartrellitePbCuFe3+(AsO4)2(OH) · H2OTric. 1 : P1
8.CG.20HelmutwinkleritePbZn2(AsO4)2 · 2H2OTric. 1 : P1
8.CG.20ZincgartrellitePbZn2(AsO4)2(H2O,OH)2Tric. 1 : P1
8.CG.20PhosphogartrellitePbCuFe3+(PO4)2(OH,H2O)2Tric. 1 : P1
8.CG.20LukrahniteCaCuFe3+(AsO4)2(OH,H2O)2Tric. 1 : P1
8.CG.25Pottsite(Pb3xBi4-2x)(VO4)4 · H2O (0.8 < x < 1.0)Tet. 4/m : I41/a
8.CG.25Armellinoite-(Ce)Ca4Ce4+(AsO4)4 · H2OTet. 4/m : I41/a
8.CG.35NickeltalmessiteCa2Ni(AsO4)2 · 2H2OTric. 1 : P1
8.CG.55IrhtemiteCa4Mg(AsO4)2(HAsO4)2 · 4H2OMon.

Other InformationHide

Notes:
Soluble in warm, dilute HCl
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 RappolditeHide

References for RappolditeHide

Localities for RappolditeHide

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 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 (TL)
 
  • Saxony
    • Erzgebirgskreis
      • Schneeberg
        • Neustädtel
Effenberger et al. (2000)
Quick NavTopAbout RappolditeUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 27, 2024 04:23:11 Page updated: January 18, 2024 16:08:55
Go to top of page