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Johnbaumite

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About JohnbaumiteHide

07708460014947647365653.jpg
John Leach Baum
Formula:
Ca5(AsO4)3OH
Colour:
Light grayish white
Lustre:
Sub-Vitreous, Resinous, Waxy, Greasy
Hardness:
Specific Gravity:
3.68
Crystal System:
Hexagonal
Name:
Named by Pete Dunn, Donald Peacor, and N. Newberry in 1980 in honor of Mr. John Leach Baum [March 15, 1916 New York, New York, USA - October 16, 2011 Hamburg, New Jersey, USA], graduate of Harvard University and student under Dr. Charles Palache. He was the former Head Geologist, Franklin Mine, Curator Emeritus of the Franklin Mineral Museum, author and contributor to the mineralogy and geology of the Franklin deposit.
Apatite Group. The arsenate analogue of Hydroxylapatite. The OH analogue of Svabite and Turneaureite.


Classification of JohnbaumiteHide

Approved
Approval Year:
1980
8.BN.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
N : With only large cations, (OH, etc.):RO4 = 0.33:1
41.8.3.3

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : A5(XO4)3Zq
20.2.6

20 : Arsenates (also arsenates with phosphate, but without other anions)
2 : Arsenates of Be, Mg, Ca or Ba

Physical Properties of JohnbaumiteHide

Sub-Vitreous, Resinous, Waxy, Greasy
Transparency:
Transparent, Translucent
Colour:
Light grayish white
Streak:
White
Hardness:
4½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
{10-10}
Fracture:
Irregular/Uneven
Density:
3.68 g/cm3 (Measured)    3.73 g/cm3 (Calculated)

Optical Data of JohnbaumiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.687 nε = 1.684
Birefringence:
0.003
Max Birefringence:
δ = 0.003
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Optical Extinction:
Parallel
Pleochroism:
Non-pleochroic

Chemical Properties of JohnbaumiteHide

Formula:
Ca5(AsO4)3OH
IMA Formula:
Ca5(AsO4)3(OH)

Crystallography of JohnbaumiteHide

Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Setting:
P63/m
Cell Parameters:
a = 9.7 Å, c = 6.93 Å
Ratio:
a:c = 1 : 0.714
Unit Cell V:
564.69 ų (Calculated from Unit Cell)
Z:
2

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0004928JohnbaumiteLee Y J, Stephens P W, Tang Y, Li W, Phillips B L, Parise J B, Reeder R J (2009) Arsenate substitution in hydroxylapatite: Structural characterization of the Ca5(PxAs1-xO4)3OH solid solution American Mineralogist 94 666-6752009synthetic0293
0004929JohnbaumiteLee Y J, Stephens P W, Tang Y, Li W, Phillips B L, Parise J B, Reeder R J (2009) Arsenate substitution in hydroxylapatite: Structural characterization of the Ca5(PxAs1-xO4)3OH solid solution American Mineralogist 94 666-6752009synthetic0293
0004930JohnbaumiteLee Y J, Stephens P W, Tang Y, Li W, Phillips B L, Parise J B, Reeder R J (2009) Arsenate substitution in hydroxylapatite: Structural characterization of the Ca5(PxAs1-xO4)3OH solid solution American Mineralogist 94 666-6752009synthetic0293
0020732JohnbaumiteBiagioni C, Pasero M (2013) The crystal structure of johnbaumite, Ca5(AsO4)3OH, the arsenate analogue of hydroxylapatite American Mineralogist 98 1580-15842013Harstigen mine, Varmland, Sweden0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.98 Å(50)
3.47 Å(50)
2.90 Å(100)
2.82 Å(70)
2.80 Å(70)
2.68 Å(50)
2.03 Å(40)
1.879 Å(40)
Comments:
ICDD 33-265

Geological EnvironmentHide

Geological Setting:
Skarn

Type Occurrence of JohnbaumiteHide

General Appearance of Type Material:
Grayish white masses
Geological Setting of Type Material:
Metamorphic zinc-bearing skarn
Associated Minerals at Type Locality:

Synonyms of JohnbaumiteHide

Other Language Names for JohnbaumiteHide

German:Johnbaumit
Spanish:Johnbaumita

Relationship of Johnbaumite to other SpeciesHide

Other Members of this group:
AlforsiteBa5(PO4)3ClHex. 6/m : P63/m
ApatiteCa5(PO4)3(Cl/F/OH)
HydroxylpyromorphitePb5(PO4)3(OH)Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
MimetitePb5(AsO4)3ClHex. 6/m : P63/m
OxypyromorphitePb10(PO4)6O
PieczkaiteMn5(PO4)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
TurneaureiteCa5(AsO4)3ClHex.
Unnamed (F-analogue of Pyromorphite)Pb5(PO4)3F
Unnamed (OH-analogue of Mimetite)Pb5(AsO4)3(OH)
VanadinitePb5(VO4)3ClHex. 6/m : P63/m

Common AssociatesHide

BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3[AlSi3O10(OH)2
CalciteCaCO3
Associated Minerals Based on Photo Data:
9 photos of Johnbaumite associated with CalciteCaCO3
6 photos of Johnbaumite associated with AndraditeCa3Fe3+2(SiO4)3
5 photos of Johnbaumite associated with FrankliniteZn2+Fe3+2O4
3 photos of Johnbaumite associated with WillemiteZn2SiO4
2 photos of Johnbaumite associated with ZinciteZnO
2 photos of Johnbaumite associated with GahniteZnAl2O4
2 photos of Johnbaumite associated with MagnetiteFe2+Fe3+2O4
1 photo of Johnbaumite associated with SphaleriteZnS
1 photo of Johnbaumite associated with RoweiteCa2Mn2+2B4O7(OH)6

Related Minerals - Nickel-Strunz GroupingHide

8.BN.AraditeBaCa6[(SiO4)(VO4)](VO4)2FTrig. 3m : R3m
8.BN.05AlforsiteBa5(PO4)3ClHex. 6/m : P63/m
8.BN.05Belovite-(Ce)NaCeSr3(PO4)3FTrig. 3 : P3
8.BN.05Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)Hex.
8.BN.05Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)Hex.
8.BN.05ChlorapatiteCa5(PO4)3ClHex. 6/m : P63/m
8.BN.05Mimetite-MPb5(AsO4)3ClMon. 2/m : P21/b
8.BN.05Johnbaumite-MCa5(AsO4)3OHMon. 2/m : P21/m
8.BN.05FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
8.BN.05HedyphaneCa2Pb3(AsO4)3ClHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
8.BN.05HydroxylapatiteCa5(PO4)3(OH)Hex. 6/m : P63/m
8.BN.05MimetitePb5(AsO4)3ClHex. 6/m : P63/m
8.BN.05MorelanditeCa2Ba3(AsO4)3ClHex.
8.BN.05PyromorphitePb5(PO4)3ClHex. 6/m : P63/m
8.BN.05FluorstrophiteSrCaSr3(PO4)3FHex. 6/m : P63/m
8.BN.05SvabiteCa5(AsO4)3FHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
8.BN.05TurneaureiteCa5(AsO4)3ClHex.
8.BN.05VanadinitePb5(VO4)3ClHex. 6/m : P63/m
8.BN.05Belovite-(La)NaLaSr3(PO4)3FTrig. 3 : P3
8.BN.05Deloneite(Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5Trig. 3 : P3
8.BN.05FluorcaphiteSrCaCa3(PO4)3FHex. 6/m : P63/m
8.BN.05Kuannersuite-(Ce)NaCeBa3(PO4)3F0.5Cl0.5Trig. 3 : P3
8.BN.05Hydroxylapatite-MCa5(PO4)3OHMon. 2/m : P21/b
8.BN.05PhosphohedyphaneCa2Pb3(PO4)3ClHex. 6/m : P63/m
8.BN.05StronadelphiteSr5(PO4)3FHex. 6/m : P63/m
8.BN.05FluorphosphohedyphaneCa2Pb3(PO4)3FHex. 6/m : P63/m
8.BN.05Carlgieseckeite-(Nd)NaNdCa3(PO4)3FTrig. 3 : P3
8.BN.05Miyahisaite(Sr,Ca)2Ba3(PO4)3F Hex. 6/m : P63/m
8.BN.10ArctiteNa2Ca4(PO4)3FTrig. 3m (3 2/m) : R3m

Related Minerals - Dana Grouping (8th Ed.)Hide

41.8.3.1SvabiteCa5(AsO4)3FHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
41.8.3.2TurneaureiteCa5(AsO4)3ClHex.
41.8.3.4Johnbaumite-MCa5(AsO4)3OHMon. 2/m : P21/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

20.2.1BearsiteBe2(AsO4)(OH) · 4H2OMon.
20.2.2BrassiteMg(HAsO4) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
20.2.3RößleriteMg(HAsO4) · 7H2OMon. 2/m : B2/b
20.2.4HörnesiteMg3(AsO4)2 · 8H2OMon. 2/m : B2/m
20.2.5WeiliteCa(HAsO4)Tric. 1 : P1
20.2.7HaidingeriteCaHAsO4 · H2OOrth. mmm (2/m 2/m 2/m) : Pbcn
20.2.8PharmacoliteCa(HAsO4) · 2H2OMon. m
20.2.9SainfelditeCa5(AsO4)2(AsO3OH)2 · 4H2OMon. 2/m : B2/b
20.2.10VladimiriteCa4(AsO4)2(AsO3OH) · 4H2OMon. 2/m : P21/b
20.2.11GuériniteCa5(AsO4)2(HAsO4)2 · 9H2OMon. 2/m : P21/b
20.2.12FerrarisiteCa5(AsO4)2(HAsO4)2 · 9H2OTric. 1 : P1
20.2.13RauenthaliteCa3(AsO4)2 · 10H2OTric. 1 : P1
20.2.14PhaunouxiteCa3(AsO4)2 · 11H2OTric.
20.2.15McneariteNaCa5(AsO4)(HAsO4)4 · 4H2OTric.
20.2.16BergslagiteCaBeAsO4(OH)Mon. 2/m : P21/b
20.2.17AdeliteCaMg(AsO4)(OH)Orth. 2 2 2 : P21 21 21
20.2.18TalmessiteCa2Mg(AsO4)2 · 2H2OTric.
20.2.19IrhtemiteCa4Mg(AsO4)2(HAsO4)2 · 4H2OMon.
20.2.20CamgasiteCaMg(AsO4)(OH) · 5H2OMon. 2/m : P21/m
20.2.21PicropharmacoliteCa4Mg(AsO4)2(HAsO4)2 · 11H2OTric. 1 : P1
20.2.22BariopharmacosideriteBa0.5Fe3+4(AsO4)3(OH)4 · 5H2OTet. 4 2m : P4 2m

Fluorescence of JohnbaumiteHide

Pinkish orange in SW only

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 JohnbaumiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dunn, P.J.; Peacor, D.R.; Newberry, N. (1980): Johnbaumite, a new member of the apatite group from Franklin, New Jersey. American Mineralogist 65, 1143-1145.
Young J. Lee, Peter W. Stephens, Yuanzhi Tang, Wei Li, Brian L. Phillips, John B. Parise, and Richard J. Reeder (2009): Arsenate substitution in hydroxylapatite: Structural characterization of the Ca5(PxAs1–xO4)3OH solid solution. American Mineralogist 94, 666-675.

Internet Links for JohnbaumiteHide

Localities for JohnbaumiteHide

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.
Japan
 
  • Okayama Prefecture
    • Takahashi City
      • Bicchu-cho (Bitchu-cho)
        • Fuka
American Mineralogist (1999): 84:991.; Journal of Mineralogical and Petrological Sciences Vol. 99 (2004) , No. 2 April 67-71; Ayaka Hayashi, Koichi Momma, Ritsuro Miyawaki, Mitsuo Tanabe, Shigetomo Kishi, Shoichi Kobayashi, Isao Kusachi (2017): Kurchatovite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences 112, 159-165.
Russia
 
  • Zabaykalsky Krai
    • Buriatia Republic (Buryatia)
      • Baunt District
        • Vitim Plateau
Malinko, S. V.; Chukanov, N. V. (1998): Arsenate analog of apatite - turneaureite and johnbaumite from Solongo deposit, Buryatia. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva 127, 92-95 (in Russian). ; P.M. Kartashov data; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Sweden
 
  • Värmland County
    • Filipstad
      • Långban Ore District
https://www.mikon-online.com/shop/media/mikonAZ.pdf
      • Nordmark District
        • Jakobsberg ore field
No reference listed
      • Nordmark Odal Field (Nordmarksberg)
Mineralogical Magazine (1998) 62 (3), 395-407
      • Persberg ore district
        • Pajsberg
Biagioni, C. & Pasero, M. (2013): The crystal structure of johnbaumite, Ca5(AsO4)3OH, the arsenate analogue of hydroxylapatite. American Mineralogist. 98, 1580–1584
  • Västmanland County
    • Norberg
Nysten, P. (2020) Manganrika hematitmalmer av Långbantyp från Norberg och Saladamm, Västmanland, centrala Bergslagen, Sverige. Norsk Mineralsymposium 2020: 5-19
Nysten, P. & Lorin, T. (2016) Nyupptäckta Ca-, Mn-, Pb-, Ba-, As- och Sb-förande mineral i Norbergs malmtrakt. LångbansNytt 22 (1): 7-19; Nysten, P. (2020) Manganrika hematitmalmer av Långbantyp från Norberg och Saladamm, Västmanland, centrala Bergslagen, Sverige. Norsk Mineralsymposium 2020: 5-19
USA (TL)
 
  • New Jersey
    • Sussex County
      • Franklin Mining District
        • Franklin
Dunn, P.J., et al: Am.Min.:65:1143-1145 (1980); Dunn(1995):Pt5:651.
        • Ogdensburg
          • Sterling Hill
Jenkins, R.E., II: (1994); Dunn(1995):Pt5:651.
 
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