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Florencite-(Nd)

A valid IMA mineral species
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01349480017108531718019.jpg
Florencite-(Nd), etc.

Svodovyi area, Grubependity Lake, Maldynyrd range, Kozhim River Basin, Komi Republic, Russia
05723460014974484966778.jpg
Florencite-(Nd)

Kiluli, Western Province, Rwanda
00397700017125517615363.jpg
Florencite-(Nd), etc.

Svodovyi area, Grubependity Lake, Maldynyrd range, Kozhim River Basin, Komi Republic, Russia
05929440014961996636672.jpg
Florencite-(Nd)

Kiluli, Western Province, Rwanda
00397700017125517615363.jpg
Florencite-(Nd), etc.

Svodovyi area, Grubependity Lake, Maldynyrd range, Kozhim River Basin, Komi Republic, Russia
05723460014974484966778.jpg
Florencite-(Nd)

Kiluli, Western Province, Rwanda
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About Florencite-(Nd)Hide

Formula:
NdAl3(PO4)2(OH)6
Colour:
Moderate brown
Lustre:
Earthy
Hardness:
5 - 6
Specific Gravity:
3.70 (Calculated)
Crystal System:
Trigonal
Name:
Named for its relationship to florencite-(Ce), with the "-(Nd)" suffix in allusion to neodymium being the dominant REE in the composition.

The root florencite, is named in honor Dr. William Florence (1864-1942), who made a preliminary chemical examination of florencite-(Ce).
This page provides mineralogical data about Florencite-(Nd).


Unique IdentifiersHide

Mindat ID:
1562
Long-form identifier:
mindat:1:1:1562:8
GUID
(UUID V4):
31cc119a-5483-46c0-937e-06c3750659c4

IMA Classification of Florencite-(Nd)Hide

IMA status:
Approved
First published:
1971

Classification of Florencite-(Nd)Hide

Strunz-mindat (2024):
8.BL.13

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
Dana 8th ed.:
41.5.10.4

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
Hey's CIM Ref.:
19.9.12

19 : Phosphates
9 : Phosphates of rare earths and Sc

Mineral SymbolsHide

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

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

Physical Properties of Florencite-(Nd)Hide

Lustre:
Earthy
Transparency:
Translucent
Colour:
Moderate brown
Hardness:
5 - 6 on Mohs scale
Density:
3.70 g/cm3 (Calculated)

Optical Data of Florencite-(Nd)Hide

Type:
Uniaxial (+)
RI values:
nω = 1.720 nε = 1.730
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High

Chemistry of Florencite-(Nd)Hide

Mindat Formula:
NdAl3(PO4)2(OH)6
Elements listed:
Al, H, Nd, O, P - search for minerals with similar chemistry

Crystallography of Florencite-(Nd)Hide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 6.992(1) Å, c = 16.454(7) Å
Ratio:
a:c = 1 : 2.353
Unit Cell V:
696.63 ų (Calculated from Unit Cell)
Z:
3
Morphology:
As powdery aggregates.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.693 Å(93)
3.497 Å(90)
2.948 Å(100)
2.189 Å(50)
1.895 Å(50)
1.748 Å(63)
Comments:
The data are from Fitzpatrick (1986).

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]

Type Occurrence of Florencite-(Nd)Hide

Type Locality:
ⓘ Sausalito Road Quarry, Sausalito, Marin County, California, USA
General Appearance of Type Material:
Pulverulent earthy material in which individual crystals cannot be distinguished with a microscope.
Place of Conservation of Type Material:
No designated type material.
Geological Setting of Type Material:
In the weathered zone, on fracture surfaces, in chert.
Associated Minerals at Type Locality:
Churchite-(Y)TodorokiteLithiophorite

Synonyms of Florencite-(Nd)Hide

Florencite (in part)

Other Language Names for Florencite-(Nd)Hide

Relationship of Florencite-(Nd) to other SpeciesHide

Member of:
Plumbogummite Group > Alunite Supergroup
Other Members of this group:
BenauiteSrFe3+3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
CrandalliteCaAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
EylettersiteTh0.75Al3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
Florencite-(Ce)CeAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
Florencite-(La)LaAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
Florencite-(Sm)SmAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
GalloplumbogummitePb(Ga,Al,Ge)3(PO4)2(OH)6Trig. 3m : R3m
GorceixiteBaAl3(PO4)(PO3OH)(OH)6Mon. m : Bm
GoyaziteSrAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
KintoreitePbFe3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
Kintoreite-2cPbFe3+3(PO4)2(OH,H2O)6
PlumbogummitePbAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
SpringcreekiteBaV3+3(PO4)2(OH,H2O)6Trig. 3m (3 2/m) : R3m
UM2006-23-PO:AlBiCaFeH(Ca,Bi)(Fe,Al)3(PO4)(PO3OH)(OH)6
Unnamed (As-analogue of Zaïrite)(Bi,Pb)Fe3+3(AsO4)2(OH)6
WaylanditeBiAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
ZaïriteBiFe3+3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Florencite-(Nd) associated with Florencite-(Sm)SmAl3(PO4)2(OH)6
6 photos of Florencite-(Nd) associated with Florencite-(Ce)CeAl3(PO4)2(OH)6
3 photos of Florencite-(Nd) associated with QuartzSiO2

Related Minerals - Strunz-mindat GroupingHide

8.BL.Graulichite-(La)LaFe3+3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.OberwolfachiteSrFe3+3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.KiryuiteNaMnAl(PO4)F3Mon. 2/m : P21/m
8.BL.ClouditeBaFe3+3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05BeudantitePbFe3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05CorkitePbFe3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05HidalgoitePbAl3(AsO4)(SO4)(OH)6Trig. 3m : R3m
8.BL.05HinsdalitePbAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05KemmlitziteSrAl3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05SvanbergiteSrAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05WeileriteBaAl3(AsO4)(SO4)(OH)6Hex.
8.BL.05WoodhouseiteCaAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05GallobeudantitePbGa3(AsO4)(SO4)(OH)6Trig. 3m : R3m
8.BL.05UM2011-07-POSO:AlBaHBaAl3(PO4)(SO4)(OH)6
8.BL.10ArsenogoyaziteSrAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10ArsenogorceixiteBaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10ArsenocrandalliteCaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m)
8.BL.10BenauiteSrFe3+3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10CrandalliteCaAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10DussertiteBaFe3+3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10EylettersiteTh0.75Al3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10GorceixiteBaAl3(PO4)(PO3OH)(OH)6Mon. m : Bm
8.BL.10GoyaziteSrAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10KintoreitePbFe3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10PhilipsbornitePbAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10PlumbogummitePbAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10SegnititePbFe3+3AsO4(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10 vaViséite
8.BL.10SpringcreekiteBaV3+3(PO4)2(OH,H2O)6Trig. 3m (3 2/m) : R3m
8.BL.10GalloplumbogummitePb(Ga,Al,Ge)3(PO4)2(OH)6Trig. 3m : R3m
8.BL.13Arsenoflorencite-(La)LaAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Arsenoflorencite-(Nd)NdAl3(AsO4)2(OH)6Trig.
8.BL.13Arsenoflorencite-(Ce)CeAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(Ce)CeAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(La)LaAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13WaylanditeBiAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13ZaïriteBiFe3+3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13ArsenowaylanditeBiAl3(AsO4)2(OH)6Trig.
8.BL.13Graulichite-(Ce)CeFe3+3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(Sm)SmAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Unnamed (As-analogue of Zaïrite)(Bi,Pb)Fe3+3(AsO4)2(OH)6
8.BL.15ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)3Mon. 2/m : P21/m
8.BL.25PattersonitePbFe3+3(PO4)2(OH)5 · H2OTric. 1 : P1

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.

Internet Links for Florencite-(Nd)Hide

References for Florencite-(Nd)Hide

Localities for Florencite-(Nd)Hide

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.
Czech Republic
 
  • Liberec Region
Scharm +7 other references
  • Plzeň Region
    • Plzeň-South District
      • Spálené Poříčí
Scharm et al. (2000)
Russia
 
  • Komi Republic
    • Kozhim River Basin
      • Maldynyrd range (Maldy-nyrd range)
        • Grubependity Lake
geo.web.ru (2018)
Rwanda
 
  • Western Province
Erik Vercammen collection (from the late prof Van Wambeke)
South Africa
 
  • North West
    • Bojanala Platinum District Municipality
      • Madibeng Local Municipality
        • Brits
Atanasova et al. (2016)
USA (TL)
 
  • California
    • Marin County
      • Sausalito
Milton et al. (1971)
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