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Coeruleolactite

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About CoeruleolactiteHide

Colour:
Milk-white, light blue
Lustre:
Vitreous, Waxy
Hardness:
5
Specific Gravity:
2.55 - 2.7
Crystal System:
Triclinic
Name:
From the Greek "coeruleus" for "blue" and "lactis" for "milk" in allusion to its typical colour.
A discredited member of the Turquoise Group.

Originally described from Rindsberg Mine, Katzenelnbogen, Taunus Mts, Rhineland-Palatinate, Germany.


Classification of CoeruleolactiteHide

Discredited
42.9.3.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
9 : (AB)7(XO4)4Zq·xH2O

Physical Properties of CoeruleolactiteHide

Vitreous, Waxy
Transparency:
Translucent
Colour:
Milk-white, light blue
Streak:
White
Hardness:
Fracture:
Irregular/Uneven, Conchoidal
Density:
2.55 - 2.7 g/cm3 (Measured)    

Optical Data of CoeruleolactiteHide

Type:
Uniaxial (+)
RI values:
nω = 1.580 nε = 1.588
Max Birefringence:
δ = 0.008
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Crystallography of CoeruleolactiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 7.529 Å, b = 9.951 Å, c = 7.782 Å
α = 112.51°, β = 116.54°, γ = 68.57°
Ratio:
a:b:c = 0.757 : 1 : 0.782
Unit Cell V:
468.35 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Microcrystalline to cryptocrystalline; fibrous veinlets, botryoidal aggregates, and crusts.

Geological EnvironmentHide

Geological Setting:
Oxidized zones of iron deposits; pegmatite.

Other Language Names for CoeruleolactiteHide

Common AssociatesHide

CacoxeniteFe3+24AlO6(PO4)17(OH)12 · 75H2O
GibbsiteAl(OH)3
Goethiteα-Fe3+O(OH)
Limonite(Fe,O,OH,H2O)
VarisciteAlPO4 · 2H2O
WavelliteAl3(PO4)2(OH,F)3 · 5H2O
Associated Minerals Based on Photo Data:
1 photo of Coeruleolactite associated with DufréniteCa0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O

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

42.9.3.1TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2OTric. 1 : P1
42.9.3.3Faustite(Zn,Cu)Al6(PO4)4(OH)8 · 4H2OTric. 1 : P1
42.9.3.4ChalcosideriteCuFe3+6(PO4)4(OH)8 · 4H2OTric. 1 : P1
42.9.3.5Aheylite(Fe2+,Zn)Al6(PO4)4(OH)8 · 4H2OTric. 1 : P1
42.9.3.6PlaneriteAl6(PO4)2(HPO4)2(OH)8 · 4 H2OTric. 1 : P1
42.9.3.6AfmiteAl3(OH)4(H2O)3(PO4)(PO3OH) · H2OTric. 1 : P1

Other InformationHide

Notes:
Soluble in acids and in alkalies.
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 CoeruleolactiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Petersen (1871) Neues Jahrbuch für Mineralogie, Geologie und Paleontologie: 353. [as Cœruleolactin]
Genth (1875) Min. Report Pennsylvania: 143.
Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 59.
Hintze, C. (1933) Handbuch der Mineralogie. Gruyter & Co., Berlin: 1(4.2): 927. [in German]
Palache, C., Berman, H., and Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 961.
Fischer, E. (1958) Über die Beziehungen zwischen Coeruleolactit, Planerit, Turkis, Alumochalkosiderit, und Chalkosiderit. Beiträge zur Mineralogie und Petrographie: 6: 182. [Powder Pat., Chemistry].
Fleischer, M. (1958) American Mineralogist: 43: 1224.
Foord, E.E. and Taggart, J.E. (1998) A reexamination of the turquoise group; the mineral aheylite, planerite (redefined), turquoise and coeruleolactite. Mineralogical Magazine: 62: 93-111.
Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (2000) Handbook of Mineralogy, Volume IV. Arsenates, Phosphates, Vanadates. Mineral Data Publishing, Tucson, AZ, 680pp.: 123.
Burke, E.A.J. (2006) A mass discreditation of GQN minerals. The Canadian Mineralogist: 44(6): 1557-1560.

Internet Links for CoeruleolactiteHide

Localities for CoeruleolactiteHide

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.
Bolivia
 
  • Oruro
    • Dalence Province
      • Huanuni
SEM analyses by Gene Foord, U.S. Geological Survey, done as part of an unpublished study of the turquoise group (analyses copies courtesy of Brian Kosnar)
Brazil
 
  • Minas Gerais
    • São José da Safira
Cassedanne, J.P & J.O. (1980): Famous mineral localities: The Cruzeiro mine, past and present. Mineralogical Record 11: 363-367 +370
DR Congo
 
  • South Kivu
    • Mwenga
Van Wambeke, L. (1971): The uranium-bearing mineral bolivarite: new data and a second occurrence. Mineralogical Magazine 38, 418-423.
Germany
 
  • Rhineland-Palatinate
    • Rhein-Lahn-Kreis
      • Katzenelnbogen
Petersen (1871)
Romania
 
  • Suceava
    • Suceava district
      • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
http://minerals-of-the-carpathians.eu
UK
 
  • England
    • Cornwall
      • Linkinhorne
        • Minions
Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
USA
 
  • Pennsylvania
    • Chester Co.
      • East Whiteland Township
Foord, E.E. & Taggart, J.E. (1998): A reexamination of the turquoise group; the mineral aheylite, planerite (redefined), turquoise and coeruleolactite. Mineralogical Magazine, 62, 93-111
Uzbekistan
 
  • Navoiy
    • Kokpatas village
Mineraly Uzbekistana(Minerals of the Uzbekistan) - izd."FAN" UzbSSR-vol.1-4 - 1976-1977
 
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