Schoonerite
A valid IMA mineral species
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About Schoonerite
Formula:
ZnMn2+Fe2+2Fe3+(PO4)3(OH)2 · 9H2O
Colour:
Pale tan to brown, greenish brown, reddish brown to bronzy on weathered surface
Lustre:
Sub-Vitreous, Greasy, Silky, Dull
Hardness:
4
Specific Gravity:
2.87 - 2.92
Crystal System:
Orthorhombic
Member of:
Name:
Named in 1977 by Paul Brian Moore and Anthony R. Kampf in honour of Richard "Dick" Albert Schooner (8 March 1925, Bowling Green, Ohio, USA - 14 February 2007, East Hampton, Connecticut, USA), mineral collector from East Hampton, Connecticut.
Unique Identifiers
Mindat ID:
3577
Long-form identifier:
mindat:1:1:3577:0
IMA Classification of Schoonerite
Approved
IMA Formula:
Zn2+Mn2+Fe2+2Fe3+(PO4)3(OH)2(H2O)7·2H2O
Approval year:
1976
First published:
1977
Classification of Schoonerite
8.DB.15
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
42.8.3.1
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : (AB)5(XO4)3Zq·xH2O
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : (AB)5(XO4)3Zq·xH2O
19.6.13
19 : Phosphates
6 : Phosphates of Zn
19 : Phosphates
6 : Phosphates of Zn
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 |
|---|---|---|
| Soo | 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 Schoonerite
Sub-Vitreous, Greasy, Silky, Dull
Transparency:
Transparent, Translucent
Colour:
Pale tan to brown, greenish brown, reddish brown to bronzy on weathered surface
Streak:
Pale brown
Hardness:
4 on Mohs scale
Hardness Data:
Estimated
Comment:
By needle pressure
Tenacity:
Brittle
Cleavage:
Perfect
{010} perfect; {001} good.
{010} perfect; {001} good.
Fracture:
Micaceous
Density:
2.87 - 2.92 g/cm3 (Measured) 2.79 g/cm3 (Calculated)
Optical Data of Schoonerite
Type:
Biaxial (-)
RI values:
nα = 1.618 nβ = 1.652 nγ = 1.682
2V:
Measured: 70° to 80°, Calculated: 84°
Birefringence:
0.070
Max. Birefringence:
δ = 0.064
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:
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 biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Dispersion:
noticable
Optical Extinction:
Parallel. X= b, Y = c, Z = a.
Pleochroism:
Weak
Comments:
X = pale yellow, Y = pale brown, Z = brown.
Comments:
Absorption: Z > Y > X.
Chemistry of Schoonerite
Mindat Formula:
ZnMn2+Fe2+2Fe3+(PO4)3(OH)2 · 9H2O
Element Weights:
Crystallography of Schoonerite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pbam
Cell Parameters:
a = 11.119 Å, b = 25.546 Å, c = 6.437 Å
Ratio:
a:b:c = 0.435 : 1 : 0.252
Unit Cell V:
1,828.40 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Lathlike and strawlike crystals, elongated along [100], flattened on {010},rarely to 2mm; as rosettes; as sprays and mats.
Comment:
Original setting = Pmab
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0000562 | Schoonerite | Kampf A R (1977) Schoonerite: its atomic arrangement American Mineralogist 62 250-255 | ![]() | 1977 | Palermo pegmatite, North Groton, New Hampshire, USA | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 12.77 Å | (100) |
| 8.356 Å | (70) |
| 6.430 Å | (40) |
| 5.520 Å | (30) |
| 3.761 Å | (40) |
| 3.182 Å | (40) |
| 2.768 Å | (90) |
| 1.600 Å | (40) |
Reference:
Comments:
Palermo No. 1 Mine, New Hampshire, USA. Data from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 22 : Hydration and low-? subsurface aqueous alteration (see also #23) | |
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Schoonerite
General Appearance of Type Material:
Tiny (<1 mm) tufts of brown bronzey thin acicular crystals or occasionally as similarly small, thin rectangular laths.
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, numbers 135934, 137019.
Geological Setting of Type Material:
Altered phosphate pods in pegmatite.
Associated Minerals at Type Locality:
Synonyms of Schoonerite
Other Language Names for Schoonerite
Relationship of Schoonerite to other Species
Member of:
Other Members of Schoonerite Group:
| Schmidite | [Zn2(Fe3+,Mn2+)2Fe3+(PO4)3(OH)3(H2O)6] · 2H2O | Orth. |
| Wildenauerite | Zn(Fe3+,Mn2+)2MnFe3+(PO4)3(OH)3(H2O)6 · 2H2O | Orth. mmm(2/m2/m2/m) : Pbam |
| Wilhelmgümbelite | ZnFe2+Fe3+3(PO4)3(OH)4(H2O)5 · 2H2O | Orth. mmm(2/m2/m2/m) |
Common Associates
Associations Based on Photo Data:
| 10 photos of Schoonerite associated with Phosphophyllite | Zn2Fe 2+(PO4)2 · 4H2O |
| 4 photos of Schoonerite associated with Rockbridgeite | (Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)5 |
| 2 photos of Schoonerite associated with Jahnsite Group | XM1M22M32(H2O)8(OH)2(PO4)4 |
| 2 photos of Schoonerite associated with Mitridatite | Ca2Fe3+3(PO4)3O2 · 3H2O |
| 2 photos of Schoonerite associated with Siderite | FeCO3 |
| 1 photo of Schoonerite associated with Diadochite | Fe3+2(PO4)(SO4)(OH) · 6H2O |
| 1 photo of Schoonerite associated with Jahnsite-(CaMnMn) | {Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 1 photo of Schoonerite associated with Keckite | CaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2O |
| 1 photo of Schoonerite associated with Quartz | SiO2 |
| 1 photo of Schoonerite associated with Serrabrancaite | MnPO4 · H2O |
Related Minerals - Strunz-mindat Grouping
| 8.DB. | Arangasite | Al2F(PO4)(SO4) · 9H2O |
| 8.DB. | Höslite | Fe3+3(VO4)2(SO4)(OH)(H2O)4 · 3H2O |
| 8.DB. | Camaronesite | [Fe3+(H2O)2(PO3OH)]2(SO4) · 1-2H2O |
| 8.DB.05 | Destinezite | Fe3+2(PO4)(SO4)(OH) · 6H2O |
| 8.DB.05 | Pitticite | (Fe, AsO4, H2O) (?) |
| 8.DB.05 | Diadochite | Fe3+2(PO4)(SO4)(OH) · 6H2O |
| 8.DB.07 | Wilhelmgümbelite | ZnFe2+Fe3+3(PO4)3(OH)4(H2O)5 · 2H2O |
| 8.DB.07 | Schmidite | [Zn2(Fe3+,Mn2+)2Fe3+(PO4)3(OH)3(H2O)6] · 2H2O |
| 8.DB.07 | Wildenauerite | Zn(Fe3+,Mn2+)2MnFe3+(PO4)3(OH)3(H2O)6 · 2H2O |
| 8.DB.10 | Vashegyite | Al11(PO4)9(OH)6 · 38H2O |
| 8.DB.20 | Sinkankasite | Mn2+Al(PO3OH)2(OH) · 6H2O |
| 8.DB.25 | Mitryaevaite | Al6(PO4)((P,S)O3(OH,O))2F2(OH)2 · 14.5H2O |
| 8.DB.30 | Sanjuanite | Al2(PO4)(SO4)(OH) · 9H2O |
| 8.DB.35 | Sarmientite | Fe3+2(AsO4)(SO4)(OH) · 5H2O |
| 8.DB.40 | Bukovskýite | Fe3+2(AsO4)(SO4)(OH) · 9H2O |
| 8.DB.40 | Manganflurlite | ZnMn2+3Fe3+(PO4)3(OH)2(H2O)7 · 2H2O |
| 8.DB.40 | Flurlite | Zn3Mn2+Fe3+(PO4)3(OH)2 · 9H2O |
| 8.DB.42 | Bohuslavite | Fe3+4(PO4)3(SO4)(OH) · nH2O |
| 8.DB.45 | Zýkaite | Fe3+4(AsO4)3(SO4)(OH) · 15H2O |
| 8.DB.47 | Lapeyreite | Cu3O[AsO3(OH)]2 · 0.75H2O |
| 8.DB.50 | Rossiantonite | Al3(PO4)(SO4)2(OH)2(H2O)14 |
| 8.DB.50 | Giniite | Fe2+Fe3+4(PO4)3(OH)5 · 2H2O |
| 8.DB.52 | 'Arctowskite' | Al9(PO4)8(OH)3 · 27H2O |
| 8.DB.55 | Sasaite | (Al,Fe3+)14(PO4)11(SO4)(OH)7 · 83H2O |
| 8.DB.60 | Mcauslanite | Fe3Al2(PO4)3(PO3OH)F · 18H2O |
| 8.DB.65 | Goldquarryite | CuCd2Al3(PO4)4F2(H2O,F)2 · 10H2O |
| 8.DB.70 | Birchite | Cd2Cu2(PO4)2(SO4) · 5H2O |
| 8.DB.75 | Braithwaiteite | NaCu5(Ti4+Sb5+)(AsO4)4(HAsO4)2O2 · 8H2O |
Fluorescence of Schoonerite
Not fluorescent in UV.
Other Information
Notes:
Rapidly soluble in HCl.
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 Schoonerite
mindat.org URL:
https://www.mindat.org/min-3577.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Schoonerite
Reference List:
Moore, Paul B, Kampf, Anthony R. (1977) Schoonerite, a new zinc-manganese-iron phosphate mineral. American Mineralogist, 62 (3-4) 246-249
Kampf, Anthony R. (1977) Schoonerite: its atomic arrangement. American Mineralogist, 62 (3-4) 250-255
Localities for Schoonerite
Showing 15 localities.
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.
Brazil | |
| Sergio Varvello collection |
France | |
| BERBAIN. C et al. (2016) |
Germany | |
| Dill et al. (2009) |
| Dill (2009) |
| web.archive.org (2001) +1 other reference | |
Portugal | |
| Alves (n.d.) |
Romania | |
| HÎRTOPANU et al. (2025) |
USA | |
| Gene Bearss +1 other reference |
| King et al. (1994) +1 other reference |
| King et al. (1994) +1 other reference | |
| King et al. (6) | |
| [Amer.Min. (1977) +2 other references |
| Whitmore et al. (2004) | |
| Horton et al. (1981) |
| Mineral Webzine |
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The
Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA