Zinclipscombite
A valid IMA mineral species
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About Zinclipscombite
William Nunn Lipscomb, Jr.
Formula:
ZnFe3+2(PO4)2(OH)2
Colour:
Dark green to brown
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.65
Crystal System:
Tetragonal
Name:
Named as the zinc analogue of lipscombite.
The species lipscombite itself was named in honour of William Nunn Lipscomb, Jr. (9 December 1919, Cleveland, Ohio, USA - 14 April 2011, Cambridge, Massachusetts, USA), American inorganic and organic chemist, University of Minnesota, Minneapolis, Minnesota, USA, who determined the crystal structure of the synthetic compound. The name was originally given to synthetic material. Lipscomb was awarded the Nobel Prize in Chemistry in 1976 “for his studies on the structure of borates, illuminating problems of chemical bonding”.
The species lipscombite itself was named in honour of William Nunn Lipscomb, Jr. (9 December 1919, Cleveland, Ohio, USA - 14 April 2011, Cambridge, Massachusetts, USA), American inorganic and organic chemist, University of Minnesota, Minneapolis, Minnesota, USA, who determined the crystal structure of the synthetic compound. The name was originally given to synthetic material. Lipscomb was awarded the Nobel Prize in Chemistry in 1976 “for his studies on the structure of borates, illuminating problems of chemical bonding”.
Unique Identifiers
Mindat ID:
29136
Long-form identifier:
mindat:1:1:29136:1
IMA Classification of Zinclipscombite
Classification of Zinclipscombite
8.BB.90
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
41.10.2.2
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
10 : (AB)3(XO4)2Zq
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
10 : (AB)3(XO4)2Zq
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Zlcb | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Zinclipscombite
Vitreous
Transparency:
Translucent
Colour:
Dark green to brown
Streak:
Light green to beige
Hardness:
5 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
3.65(4) g/cm3 (Measured) 3.727 g/cm3 (Calculated)
Optical Data of Zinclipscombite
Type:
Uniaxial (+)
RI values:
nω = 1.755(5) nε = 1.795(5)
Max. Birefringence:
δ = 0.040
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized uniaxial interference figure - the conoscopic
(convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis
centred and vertical. The coloured rings are isochromatics, computed with the
same physics as the Michel-Lévy bar above; the dark cross is the isogyre.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
Pleochroism:
Visible
Comments:
Х = bright-green to blue-green, Z = light greenish brown.
Comments:
Absorption: X > Z.
Chemistry of Zinclipscombite
Mindat Formula:
ZnFe3+2(PO4)2(OH)2
Element Weights:
Crystallography of Zinclipscombite
Crystal System:
Tetragonal
Class (H-M):
422 - Trapezohedral
Space Group:
P43212
Cell Parameters:
a = 7.242 Å, c = 13.125 Å
Ratio:
a:c = 1 : 1.812
Unit Cell V:
688.4 ų
Z:
4
Morphology:
fibrous spheres
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.79 Å | (80) |
| 3.32 Å | (100) |
| 3.21 Å | (60) |
| 2.602 Å | (45) |
| 2.299 Å | (40) |
| 2.049 Å | (40) |
| 1.663 Å | (45) |
| 1.605 Å | (50) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 22 : Hydration and low-? subsurface aqueous alteration (see also #23) |
Type Occurrence of Zinclipscombite
General Appearance of Type Material:
Spheroidal, fibrous aggregates up to 2.5 mm. The fibers have a thickness of about 20 µm.
Place of Conservation of Type Material:
Mining and Technology University, Freiberg, Germany (81019).
Geological Setting of Type Material:
Secondary mineral in the oxidation zone of a hydrothermal vein-type silver and base metal sulfide deposit.
Associated Minerals at Type Locality:
Synonyms of Zinclipscombite
Other Language Names for Zinclipscombite
Dutch:Zinclipscombiet
German:Zinclipscombit
Zinklipscombit
Zinklipscombit
Common Associates
Associations Based on Photo Data:
| 2 photos of Zinclipscombite associated with Phosphofibrite | (H2O,K)3.5Fe8(PO4)6(OH)7 · 5H2O |
| 2 photos of Zinclipscombite associated with Leucophosphite | KFe3+2(PO4)2(OH) · 2H2O |
| 2 photos of Zinclipscombite associated with Krásnoite | Ca3Al7.7Si3P4O23.5(OH)12.1F2 · 8H2O |
| 1 photo of Zinclipscombite associated with Meurigite-Na | NaFe3+8(PO4)6(OH)7 · 6.5H2O |
| 1 photo of Zinclipscombite associated with Kidwellite | NaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33 |
| 1 photo of Zinclipscombite associated with 'Limonite' | |
| 1 photo of Zinclipscombite associated with Quartz | SiO2 |
| 1 photo of Zinclipscombite associated with Lipscombite | Fe2+Fe3+2(PO4)2(OH)2 |
| 1 photo of Zinclipscombite associated with Fluorapatite | Ca5(PO4)3F |
| 1 photo of Zinclipscombite associated with Millisite | (Na,K)CaAl6(PO4)4(OH)9 · 3H2O |
Related Minerals - Strunz-mindat Grouping
| 8.BB. | Moabite | NiFe3+(PO4)O |
| 8.BB. | Tilasite | CaMg(AsO4)F |
| 8.BB. | Paulgrothite | Cu9Fe3+O4(PO4)4Cl3 |
| 8.BB. | Karlditmarite | Cu9O4(PO4)2(SO4)2 |
| 8.BB. | Milkovoite | Cu4O(PO4)(AsO4) |
| 8.BB.X | Arsenowagnerite | Mg2(AsO4)F |
| 8.BB.05 | Tavorite | LiFe3+(PO4)(OH) |
| 8.BB.05 | Amblygonite | LiAl(PO4)F |
| 8.BB.05 | Montebrasite | LiAl(PO4)(OH) |
| 8.BB.10 | Zwieselite | Fe2+2(PO4)F |
| 8.BB.10 | Triplite | Mn2+2(PO4)F |
| 8.BB.15 | 'Unnamed (Sb-analogue of Auriacusite)' | Fe3+Cu2+[(Sb,As)O4]O |
| 8.BB.15 | Joosteite | Mn2+(Mn3+,Fe3+)(PO4)O |
| 8.BB.15 | Hydroxylwagnerite | Mg2(PO4)(OH) |
| 8.BB.15 | Wagnerite | Mg2(PO4)F |
| 8.BB.15 | Stanĕkite | (Mn2+,Fe2+,Mg)Fe3+(PO4)O |
| 8.BB.15 | Triploidite | Mn2+2(PO4)(OH) |
| 8.BB.15 | Sarkinite | Mn2+2(AsO4)(OH) |
| 8.BB.15 | Wolfeite | Fe2+2(PO4)(OH) |
| 8.BB.20 | Holtedahlite | Mg2(PO4)(OH) |
| 8.BB.20 | Satterlyite | (Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6 |
| 8.BB.25 | Althausite | Mg4(PO4)2(OH,O)(F,◻) |
| 8.BB.30 | Zincolivenite | CuZn(AsO4)(OH) |
| 8.BB.30 | Adamite | Zn2(AsO4)(OH) |
| 8.BB.30 | Libethenite | Cu2(PO4)(OH) |
| 8.BB.30 | Zincolibethenite | CuZn(PO4)(OH) |
| 8.BB.30 | Eveite | Mn2+2(AsO4)(OH) |
| 8.BB.30 | Olivenite | Cu2(AsO4)(OH) |
| 8.BB.30 | Auriacusite | Fe3+Cu2+(AsO4)O |
| 8.BB.35 | Paradamite | Zn2(AsO4)(OH) |
| 8.BB.35 | Tarbuttite | Zn2(PO4)(OH) |
| 8.BB.40 | Barbosalite | Fe2+Fe3+2(PO4)2(OH)2 |
| 8.BB.40 | Scorzalite | Fe2+Al2(PO4)2(OH)2 |
| 8.BB.40 | Lazulite | MgAl2(PO4)2(OH)2 |
| 8.BB.40 | Meizhouite | Fe2+V3+2(PO4)2(OH)2 |
| 8.BB.40 | Hentschelite | CuFe3+2(PO4)2(OH)2 |
| 8.BB.40 | Wilhelmkleinite | ZnFe3+2(AsO4)2(OH)2 |
| 8.BB.45 | Dokuchaevite | Cu8O2(VO4)3Cl3 |
| 8.BB.45 | Trolleite | Al4(PO4)3(OH)3 |
| 8.BB.45 | Yaroshevskite | Cu9O2(VO4)4Cl2 |
| 8.BB.50 | Namibite | Cu(BiO)2(VO4)(OH) |
| 8.BB.50 | Aleutite | [Cu5O2](AsO4)(VO4) · (Cu,K,Pb,Rb,Cs,)Cl |
| 8.BB.52a | Ericlaxmanite | Cu4O(AsO4)2 |
| 8.BB.52b | Kozyrevskite | Cu4O(AsO4)2 |
| 8.BB.55 | Phosphoellenbergerite | (Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6 |
| 8.BB.55 | Popovite | Cu5O2(AsO4)2 |
| 8.BB.60 | Urusovite | CuAl(AsO4)O |
| 8.BB.65 | Theoparacelsite | Cu3(As2O7)(OH)2 |
| 8.BB.70 | Turanite | Cu5(VO4)2(OH)4 |
| 8.BB.75 | Stoiberite | Cu5(VO4)2O2 |
| 8.BB.80 | Fingerite | Cu11(VO4)6O2 |
| 8.BB.85 | Averievite | Cu6(VO4)2O2Cl2 |
| 8.BB.90 | Richellite | CaFe3+2(PO4)2(OH,F)2 |
| 8.BB.90 | Lipscombite | Fe2+Fe3+2(PO4)2(OH)2 |
Other Information
IR Spectrum:
IR spectrum - strong bands at 1068, 1047 and 1022 cm-1
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 Zinclipscombite
mindat.org URL:
https://www.mindat.org/min-29136.html
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Please feel free to link to this page.
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References for Zinclipscombite
Localities for Zinclipscombite
Showing 2 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Spain | |
| Calvo Rebollar et al. (2022) |
USA (TL) | |
| Chukanov et al. (2006) |
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Silver Coin Mine, Valmy, Iron Point Mining District, Humboldt County, Nevada, USA