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Collinsite

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Formula:
Ca2(Mg,Fe2+)(PO4)2 · 2H2O
System:
Triclinic
Colour:
Light brown; light ...
Hardness:
3 - 3½
Name:
For Canadian geologist William Henry Collins (1878-1937), former Director, Geological Survey of Canada.

Classification of Collinsite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
8.CG.05

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
G : With large and medium-sized cations, RO4:H2O = 1:1
40.2.2.3

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2 : AB2(XO4)2·xH2O
19.14.20

19 : Phosphates
14 : Phosphates of Fe and other metals
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Type Occurrence of Collinsite

Year of Discovery:
1927
Geological Setting of Type Material:
Vein deposit in andesite.
Associated Minerals at Type Locality:

Physical Properties of Collinsite

Silky
Diaphaneity (Transparency):
Translucent
Colour:
Light brown; light yellow-brown to colourless in transmitted light.
Hardness (Mohs):
3 - 3½
Cleavage:
Imperfect/Fair
On {001} and {010}, fair.
Density:
2.99 g/cm3 (Measured)    3.04 g/cm3 (Calculated)

Crystallography of Collinsite

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.73Å, b = 6.78Å, c = 5.44Å
α = 97.29°, β = 108.56°, γ = 107.28°
Ratio:
a:b:c = 0.845 : 1 : 0.802
Morphology:
Radial blades or lath-like fibers elongated [100], comprising layers.
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Collinsite

Type:
Biaxial (+)
RI values:
nα = 1.632 nβ = 1.642 nγ = 1.657
2V:
Measured: 80°
Max Birefringence:
δ = 0.025
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v strong

Chemical Properties of Collinsite

Formula:
Ca2(Mg,Fe2+)(PO4)2 · 2H2O
Essential elements:
All elements listed in formula:

Relationship of Collinsite to other Species

Series:
Forms a series with Fairfieldite (see here)
Other Members of Group:
CassidyiteCa2(Ni2+,Mg)(PO4)2 · 2H2O
FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
GaititeCa2Zn(AsO4)2 · 2H2O
MesseliteCa2(Fe2+,Mn2+)(PO4)2 · 2H2O
NickeltalmessiteCa2Ni(AsO4)2 · 2H2O
ParabrandtiteCa2Mn2+(AsO4)2 · 2H2O
TalmessiteCa2Mg(AsO4)2 · 2H2O
Unnamed (Fe2+-analogue of Parabrandtite)Ca2Fe2+(AsO4)2 · 2H2O
β-RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2O
8.CG.05CassidyiteCa2(Ni2+,Mg)(PO4)2 · 2H2O
8.CG.05FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
8.CG.05GaititeCa2Zn(AsO4)2 · 2H2O
8.CG.05MesseliteCa2(Fe2+,Mn2+)(PO4)2 · 2H2O
8.CG.05ParabrandtiteCa2Mn2+(AsO4)2 · 2H2O
8.CG.05TalmessiteCa2Mg(AsO4)2 · 2H2O
8.CG.05HilliteCa2(Zn,Mg)(PO4)2 · 2 H2O
8.CG.10BrandtiteCa2(Mn2+,Mg)(AsO4)2 · 2H2O
8.CG.10RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2O
8.CG.10WendwilsoniteCa2Mg(AsO4)2 · 2H2O
8.CG.10ZincroseliteCa2Zn(AsO4)2 · 2H2O
8.CG.10RruffiteCa2Cu(AsO4)2 · 2H2O
8.CG.15FerrilotharmeyeriteCa(Fe3+,Zn)2(AsO4)2 · 2(OH,H2O)
8.CG.15LotharmeyeriteCa(Zn,Mn3+)2(AsO4)2 · 2(H2O,OH)
8.CG.15MawbyitePb(Fe3+,Zn)2(AsO4)2 · 2(OH,H2O)
8.CG.15MounanaitePbFe23+(VO4)2(OH,F)2
8.CG.15ThometzekitePb(Cu,Zn)2(AsO4,SO4)2 · 2(H2O,OH)
8.CG.15TsumcoritePb(Zn,Fe3+)2(AsO4)2 · 2(H2O,OH)
8.CG.15CobaltlotharmeyeriteCa(Co,Fe3+,Ni)2(AsO4)2 · 2(H2O,OH)
8.CG.15CabalzariteCa(Mg,Al,Fe3+)2(AsO4)2(OH,H2O)2
8.CG.15Krettnichite(Pb,Sr)(Mn3+,Co)2(VO4)2 · 2(OH,H2O)
8.CG.15CobalttsumcoritePb(Co,Fe3+,Ni)2(AsO4)2 · 2(H2O,OH)
8.CG.15NickellotharmeyeriteCa(Ni,Fe3+,Co)2(AsO4)2 · 2(H2O,OH)
8.CG.15ManganlotharmeyeriteCa(Mn3+,Zn)2(AsO4)2(OH,H2O)2
8.CG.15Schneebergite(Bi3+,Ca)(Co,Ni,Fe3+)2(AsO4)2(OH,H2O)2
8.CG.15Nickelschneebergite(Bi3+,Ca)(Ni,Co,Fe3+)2(AsO4)2 · 2(OH,H2O)
8.CG.20GartrellitePb(Cu,Fe3+,Zn)2(AsO4,SO4)2 · 2(H2O,OH)
8.CG.20HelmutwinkleritePb(Zn,Cu)2(AsO4)2 · 2H2O
8.CG.20ZincgartrellitePb(Zn,Fe3+,Cu)2(AsO4)2 · 2(H2O,OH)
8.CG.20RappolditePb(Co,Ni,Zn)2(AsO4)2 · 2H2O
8.CG.20PhosphogartrellitePb(Cu,Fe3+)2(PO4,AsO4)2 · 2(H2O,OH)
8.CG.20LukrahniteCa(Cu,Zn)(Fe3+,Zn)(AsO4)2 · 2(H2O,OH)
8.CG.25PottsiteHPbBi(VO4)2 · 2H2O
8.CG.35NickeltalmessiteCa2Ni(AsO4)2 · 2H2O
19.14.1CyriloviteNaFe33+(PO4)2(OH)4 · 2H2O
19.14.2KidwelliteNaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33
19.14.3Rosemaryite(Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3
19.14.4Wyllieite(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3
19.14.5Ferrowyllieite(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3
19.14.6NatrodufréniteNaFe2+Fe53+(PO4)4(OH)6 · 2H2O
19.14.7LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
19.14.8Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
19.14.9BurangaiteNaFe2+Al5(PO4)4(OH)6 · 2H2O
19.14.10Satterlyite(Fe2+,Mg,Fe3+)2(PO4)(OH,O)
19.14.11UshkoviteMgFe23+(PO4)2(OH)2 · 8H2O
19.14.12Garyansellite(Mg,Fe)3(PO4)2(OH,O) · 1.5H2O
19.14.13ThadeuiteCa(Mg,Fe2+)3(PO4)2(OH,F)2
19.14.14AnapaiteCa2Fe2+(PO4)2 · 4H2O
19.14.15XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
19.14.16CalcioferriteCa2Fe23+(PO4)3(OH) · 7H2O
19.14.17MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
19.14.18MélonjosephiteCaFe2+Fe3+(PO4)2(OH)
19.14.19DelvauxiteCaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmed ·
19.14.21SegeleriteCa2 Mg2 Fe23+(PO4)4(OH)2 · 8H2O
19.14.22KingsmountiteCa4(Fe2+,Mn2+)Al4(PO4)6(OH)4 · 12H2O
19.14.23VauxiteFe2+Al2(PO4)2(OH)2 · 6H2O
19.14.24MetavauxiteFe2+Al2(PO4)2(OH)2 · 8H2O
19.14.25ParavauxiteFe2+Al2(PO4)2(OH)2 · 8H2O
19.14.26SigloiteFe3+Al2(PO4)2(OH)3 · 7H2O
19.14.27CacoxeniteFe243+Al(PO4)17O6(OH)12 · 17H2O
19.14.28KoninckiteFe3+PO4 · 3H2O
19.14.29Lazulite(Mg,Fe2+)Al2(PO4)2(OH)2
19.14.30ScorzaliteFe2+Al2(PO4)2(OH)2
19.14.31Souzalite(Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O
19.14.32Gormanite(Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O
19.14.33ZaïriteBiFe33+(PO4)2(OH)6

Other Names for Collinsite

Name in Other Languages:
German:Collinsit
Simplified Chinese:磷钙镁石
科林斯石
Spanish:Collinsita
Traditional Chinese:磷鈣鎂石

Other Information

Other Information:
Readily soluble in acids.
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 Collinsite

Reference List:
POITEVIN, E. (1926): A new Canadian occurrence of phosphorite from near Francois Lake, British Columbia. Geological Survey of Canada, Museum Bulletin 46, 1-21.
POITEVIN, E. & CONNOR, M.F. (1924): Collinsite (hydrated phosphate of lime), a new mineral. Transactions of the Royal Society of Canada 18, XLII.
Poitevin (1927) Canada Department of Mines, Geological Survey Bulletin 46: 1.

Wolfe (1940) American Mineralogist: 25: 746-747.

U.S. Geological Survey Professional Paper 800A: 103.

Internet Links for Collinsite

Specimens:
The following Collinsite specimens are currently listed for sale on minfind.com.

Localities for Collinsite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Australia
 
  • South Australia
    • Eyre Peninsula
      • Middleback Range
        • Iron Knob
Australian Jour.Min. v.6, no. 1
    • Flinders Ranges
      • South Flinders Ranges
        • Martins Well
Johnston, C.W . & Hill, R.J. (1978): Zinc phosphates at Reaphook Hill South Australia. Mineralogical Record 9,(1), 20-24
        • Wilmington
No reference listed
  • Western Australia
    • Meekatharra Shire
      • Milgun Station
Min.Mag. 39,577-579(1974);
Austria
 
  • Carinthia
    • Koralpe
      • Moschkogel - Weinebene area
        • Brandrücken
G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
Bahamas
 
  • San Salvador District
    • San Salvador Island
Carb.&Evap. v.16 no.1 (2001)
Brazil
 
  • Minas Gerais
    • Jequitinhonha valley
      • Itinga
        • Taquaral
Neil Hubbard specimen
Canada (TL)
 
  • British Columbia
    • Omenica Mining Division
      • Francois Lake
POITEVIN, E. (1926): A new Canadian occurrence of phosphorite from near Francois Lake, British Columbia. Geological Survey of Canada, Museum Bulletin 46, 1-21. POITEVIN, E. & CONNOR, M.F. (1924): Collinsite (hydrated phosphate of lime), a new mineral. Transactions of the Royal Society of Canada 18, XLII.
  • Yukon Territory
    • Dawson Mining District
[Mineralogical Record 23 31]
Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47.
[Mineralogical Record 23 31]
        • Kulan Camp (Area A; Area 1)
Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47
        • Stoneman Camp (Area B; Area 2)
Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47
Germany
 
  • Hesse
    • Darmstadt
      • Messel
U. Kolitsch and M. Fleck (2005): Second update on compounds with kröhnkite-type chains. Z. Kristallgr. 220, 31-41. [single-crystal structure refinement + EDS on sample labeled as "messelite"]
Morocco
 
  • Marrakech-Tensift-El Haouz Region
    • El Kelaâ des Sraghna Province
      • Sidi Bou Othmane
Favreau, G. (2012): Deux pegmatites à phosphates de Sidi Bou Othmane (Maroc). Le Cahier des Micromonteurs, 3-2012, 71-109
  • Souss-Massa-Draâ Region
    • Ouarzazate Province
      • Tazenakht
Favreau, G. (2012): Les minéralisations à phosphates de la pegmatite d'Angarf-Sud (Maroc).Le Cahier des Micromonteurs, 3-2012, 3-70.
Namibia
 
  • Erongo Region
    • Karibib District
      • Okatjimukuju Farm 55 (Friedrichsfelde Farm)
P. Keller and O. von Knorring, Eur. J. Mineral. , 1989, 1, pp. 567-593.
Norway
 
  • Buskerud
    • Modum
      • Overntjern
Chopin, C., Ferraris,G..Prencipe, M., Brunet, F. and Medenbach, O. (2001): Raadeite, Mg7(PO4)2(OH)8: a new dense-packed phosphate from Modum (Norway). European Journal of Mineralogy. 13: 319-327.
Romania
 
  • Hunedoara Co.
    • Hunedoara
      • Boșorod
Onac, B.P., Breban, R., Kearns, J., and Tamas, T. (2002) Unusual minerals related to phosphate deposits in Cioclovina Cave, Şureanu Mts. (Romania). Theoretical and Applied Karstology: 15: 27-34.; Onac, BP; Effenberger, HS; Collins, NC; Kearns, JB; Breban, RC (2011): Revisiting three minerals from Cioclovina Cave (Romania). International Journal of Speleology 40, 21-30.
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
Ruslan P. Liferovich, Yakov A. Pakhomovsky, Alla N. Bogdanova, Elena G. Balaganskaya, Kauko V. O. Laajoki, Seppo Gehor and Nikita V. Chukanov (2001) Collinsite in hydrothermal assemblages related to carbonatites in the Kovdor Complex, northwestern Russia. The Canadian Mineralogist 39:1081-1094; Subbotin, R. P. L. V. V., & Pakhomovsky, Y. A. (1998). A new type of scandium mineralization in phoscorites and carbonatites of the Kovdor massif, Russia. Canadian Mineralogist 36:971-980.
[World of Stones 95:5-6, p64]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Serbia
 
  • Raška District
    • Raška
      • Jarandol Basin
        • Baljevac na Ibru
Stopanovic, Dobrica R. (1978): Carbonate apatite and collinsite in sedimentary magnesite at Bela Stena near Baljevac na Ibru, Serbia. Zapisnici Srpskog Geoloskog Drustva 1978, 11-14.
South Africa
 
  • North West Province
    • Dr Kenneth Kaunda District
      • Ventersdorp
Minerals of South Africa
Spain
 
  • Balearic Islands
B. Onac et al (2009) Mineral Diversity in Caves from Mallorca Island, Spain. Mineralogy 1 2009 ICS Proceedings. In 15th International Congress of Speleology. p 325
  • Castile and Leon
    • Salamanca
      • Garcirrey
Encarnación Roda-Robles, Alfonso Pesquera (2007) Locality no. 4: The Phosphates-Rich Cañada Pegmatite (Aldehuela de La Bóveda, Salamanca, Spain) in ALEXANDRE LIMA & ENCARNACIÓN RODA ROBLES ed (2007) GRANITIC PEGMATITES: THE STATE OF THE ART - FIELD TRIP GUIDEBOOK. MEMÓRIAS N. º 9, UNIV. DO PORTO, FACULDADE DE CIÊNCIAS, DEPARTAMENTO DE GEOLOGIA pp 67-72.
  • Catalonia
    • Barcelona
      • Baix Llobregat
Camprubí, A., Costa, F., Melgarejo, J.C., 1994. Mineralizaciones de fosfatos férrico-alumínicos de Gavà (Catalunya): tipología. Boletín Geológico y Minero, v. 105-5, p. 444-453.
USA
 
  • Nevada
    • Humboldt Co.
      • Osgood Mts
        • Potosi District
Rocks & Minerals, Nov. 1999
  • New Hampshire
    • Grafton Co.
      • Groton
NIZAMOFF, James W., SIMMONS, William B., and FALSTER, Alexander U. (2004) PHOSPHATE MINERALOGY AND PARAGENESIS OF THE PALERMO #2 PEGMATITE, NORTH GROTON, NEW HAMPSHIRE Geological Society of America Abstracts with Programs, Vol. 36, No. 5, p. 115
Geological Society of America Abstracts with Programs, Vol. 36, No. 5, p. 115
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
Rocks and Minerals, (1985) 60:76-82
  • South Dakota
    • Custer Co.
      • Custer District
        • Fourmile
Rocks & Minerals: 60: 117.
        • Pringle
          • Cicero Peak
Rocks & Minerals: 75(3): 156-169.
  • Utah
    • Utah Co.
      • Oquirrh Mts
        • Fairfield
Liferovich, R.P., Subbotin, V.V., Pakhomovsky, Y.A., Lyalina, M.F. (1998) A new type of scandium mineralization in phoscorites and carbonatites of the Kovdor Massif, Russia. The Canadian Mineralogist, 36, 971-980.
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