Augelite
A valid IMA mineral species - grandfathered
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About Augelite
Formula:
Al2(PO4)(OH)3
Colour:
White, colourless, pale yellow, light green, rarely blue or pink; colourless in transmitted light.
Lustre:
Vitreous, Sub-Vitreous, Resinous, Pearly
Hardness:
4½ - 5
Specific Gravity:
2.696
Crystal System:
Monoclinic
Name:
Named in 1868 by Christian W. Bloomstrand from the Greek αυγή ("auge") for "shine" or "luster," in allusion to the appearance of its cleavage surfaces
Visit gemdat.org for Unique Identifiers
Mindat ID:
451
Long-form identifier:
mindat:1:1:451:6
GUID
(UUID V4):
(UUID V4):
f0b8a1ad-2113-4d95-b7a3-77ed92209a3d
IMA Classification of Augelite
Approved, 'Grandfathered' (first described prior to 1959)
Classification of Augelite
8.BE.05
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
E : With only medium-sized cations, (OH, etc.):RO4 > 2:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
E : With only medium-sized cations, (OH, etc.):RO4 > 2:1
41.6.8.1
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq
19.7.2
19 : Phosphates
7 : Phosphates of Al alone
19 : Phosphates
7 : Phosphates of Al alone
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Aul | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Aul | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Augelite
Vitreous, Sub-Vitreous, Resinous, Pearly
Transparency:
Transparent
Comment:
Lustre pearly on cleavage
Colour:
White, colourless, pale yellow, light green, rarely blue or pink; colourless in transmitted light.
Comment:
May be blue due to inclusions
Streak:
White
Hardness:
4½ - 5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {110}, good on {201}, imperfect on {001} and {101}
Perfect on {110}, good on {201}, imperfect on {001} and {101}
Fracture:
Irregular/Uneven
Density:
2.696 g/cm3 (Measured) 2.704 g/cm3 (Calculated)
Optical Data of Augelite
Type:
Biaxial (+)
RI values:
nα = 1.574 nβ = 1.576 nγ = 1.588
2V:
Measured: 51° , Calculated: 48°
Birefringence:
0.015
Max Birefringence:
δ = 0.014
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none
Optical Extinction:
Z^c = 34°, Y^c = -56°, X=b
Pleochroism:
Non-pleochroic
Chemistry of Augelite
Mindat Formula:
Al2(PO4)(OH)3
Elements listed:
Crystallography of Augelite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 13.124(6) Å, b = 7.988(5) Å, c = 5.0663(3) Å
β = 112.25(2)°
β = 112.25(2)°
Ratio:
a:b:c = 1.643 : 1 : 0.634
Unit Cell V:
491.58 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Thick tabular crystals {001}, less commonly prismatic to acicular [001], or as thin plates with a triangular outline, flattened on {110}. {110} striated [001]; {201} commonly rough; {001} replaced by vicinal faces at times in the zones cx or cm. May appear pseudorhombohedral. Massive.
Crystallographic forms of Augelite
Crystal Atlas:
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Augelite no.1 - Goldschmidt (1913-1926)
Augelite no.2 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by
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Crystal Structure
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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) |
|---|---|---|---|---|---|---|---|
| 0000177 | Augelite | Araki T, Finney J J, Zoltai T (1968) The crystal structure of augelite American Mineralogist 53 1096-1103 |  | 1968 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
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Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.706 Å | (25) |
| 4.673 Å | (25) |
| 4.007 Å | (30) |
| 3.517 Å | (55) |
| 3.490 Å | (25) |
| 3.344 Å | (100) |
| 1.869 Å | (18) |
Comments:
ICDD 34-151
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 21 : Chemically precipitated carbonate, phosphate, iron formations | |
| High-𝑇 alteration and/or metamorphism | |
| 31 : Thermally altered carbonate, phosphate, and iron formations | |
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47c : [Carbonates, phosphates, borates, nitrates] |
Geological Setting:
Hydrogen metamorphism of phosphate bearing rocks. Some high temperature hydrothermal veins. Found in phosphate-rich granite pegmatites and phosphatic iron-stone rocks.
Type Occurrence of Augelite
General Appearance of Type Material:
Massive
Associated Minerals at Type Locality:
Synonyms of Augelite
Other Language Names for Augelite
Common Associates
Associated Minerals Based on Photo Data:
| 458 photos of Augelite associated with Quartz | SiO2 |
| 230 photos of Augelite associated with Pyrite | FeS2 |
| 89 photos of Augelite associated with Siderite | FeCO3 |
| 82 photos of Augelite associated with Sphalerite | ZnS |
| 78 photos of Augelite associated with Baryte | BaSO4 |
| 37 photos of Augelite associated with Lazulite | MgAl2(PO4)2(OH)2 |
| 16 photos of Augelite associated with Hübnerite | MnWO4 |
| 16 photos of Augelite associated with Chlorargyrite | AgCl |
| 15 photos of Augelite associated with Wavellite | Al3(PO4)2(OH,F)3 · 5H2O |
| 9 photos of Augelite associated with Malachite | Cu2(CO3)(OH)2 |
Related Minerals - Strunz-mindat Grouping
| 8.BE.10 | Grattarolaite | Fe3+3(PO4)O3 |
| 8.BE.15 | Cornetite | Cu3(PO4)(OH)3 |
| 8.BE.20 | Clinoclase | Cu3(AsO4)(OH)3 |
| 8.BE.25 | Arhbarite | Cu2Mg(AsO4)(OH)3 |
| 8.BE.25 | Gilmarite | Cu3(AsO4)(OH)3 |
| 8.BE.30 | Allactite | Mn2+7(AsO4)2(OH)8 |
| 8.BE.30 | Flinkite | Mn2+2Mn3+(AsO4)(OH)4 |
| 8.BE.30 | Raadeite | Mg7(PO4)2(OH)8 |
| 8.BE.30 | Argandite | Mn7(VO4)2(OH)8 |
| 8.BE.35 | Chlorophoenicite | (Mn,Mg)3Zn2(AsO4)(OH,O)6 |
| 8.BE.35 | Magnesiochlorophoenicite | (Mg,Mn)3Zn2(AsO4)(OH,O)6 |
| 8.BE.35 | Mineral E (of Dunn, et. al., 1982) | |
| 8.BE.40 | Gerdtremmelite | (Zn,Fe)(Al,Fe)2(AsO4)(OH)5 |
| 8.BE.45 | Dixenite | CuMn2+14Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6 |
| 8.BE.45 | Hematolite | (Mn,Mg,Al,Fe3+)15(As5+O4)2(As3+O3)(OH)23 |
| 8.BE.45 | Kraisslite | Zn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16 |
| 8.BE.45 | Mcgovernite | Mn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21 |
| 8.BE.45 | Arakiite | (Zn,Mn2+)(Mn2+,Mg)12(Fe3+,Al)2(As5+O4)2(As3+O3)(OH)23 |
| 8.BE.45 | Turtmannite | (Mn,Mg)22.5Mg3-3x((V5+,As5+)O4)3(As3+O3)x(SiO4)3O5-5x(OH)20+x |
| 8.BE.45 | Carlfrancisite | Mn2+3(Mn2+,Mg,Fe3+,Al)42[As3+O3]2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)42 |
| 8.BE.50 | Synadelphite | Mn2+9(As5+O4)2(As3+O3)(OH)9 · 2H2O |
| 8.BE.55 | Holdenite | (Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8 |
| 8.BE.60 | Kolicite | Mn2+7Zn4(AsO4)2(SiO4)2(OH)8 |
| 8.BE.65 | Sabelliite | (Cu,Zn)2Zn(AsO4,SbO4)(OH)3 |
| 8.BE.70 | Jarosewichite | Mn2+3Mn3+(AsO4)(OH)6 |
| 8.BE.75 | Theisite | Cu5Zn5(AsO4,SbO4)2(OH)14 |
| 8.BE.80 | Coparsite | Cu4(AsO4,VO4)O2Cl |
| 8.BE.85 | Waterhouseite | Mn2+7(PO4)2(OH)8 |
| 8.BE.90 | Vasilseverginite | Cu9O4(AsO4)2(SO4)2 |
Fluorescence of Augelite
Not fluorescent
Other Information
Notes:
Slowly soluble in hot concentrated 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 Augelite
mindat.org URL:
https://www.mindat.org/min-451.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Augelite
Localities for Augelite
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.
Argentina | |
| Galliski et al. (2012) |
| Galliski et al. (2012) | |
Australia | |
| Lishmund (1982) |
| Duggan et al. (1990) |
| Duggan et al. (1990) | |
Austria | |
| G. Niedermayr: Carinthia II 187./107.:176 (1997) |
| Walter (2005) | |
| Niedermayr et al. (1995) | |
| Pichler (2009) |
| |
| Bernhard (1998) | |
| Bernhard (2006, 2010) |
| www.franzbernhard.x10hosting.com (2016) |
Bolivia | |
| XRD by Dr. Jaroslav Hyrsl |
| Palache et al. (1951) |
| Wilson (2001) | |
| Wilson (2001) | |
| Mineralogical Society of America - ... +1 other reference | |
| Alfredo Petrov specimens |
| Kempff et al. (La Paz, 2009) |
| Palache et al. (1951) |
| Dana 7:I:409. | |
| Wilson (2001) |
| Rob Lavinsky |
| Mineralogical Record: 32: 474. +1 other reference |
| |
| Spencer et al. (1907) +2 other references | |
| Palache et al. (1951) | |
Brazil | |
| Franz et al. (2014) |
| MinMag 61:607 (1997) | |
| Sioeira et al. (1982) |
| Cassedanne et al. (1999) |
| 531 p +6 other references |
| Santos et al. (2016) |
Bulgaria | |
| Hikov et al. (2011) +1 other reference |
Canada | |
| Robinson et al. (1992) |
| 150-152. +3 other references | |
| various added photos | |
| Robinson et al. (1992) |
| Collected by Rod Tyson | |
| Robinson et al. (1992) |
China | |
| Yueqing Yang et al. (1986) +1 other reference |
Czech Republic | |
| Breiter K. |
| Staně +4 other references |
| Staněk +1 other reference | |
Europe | |
| Berbain et al. (2012) | |
Finland | |
| Sandström et al. (2009) |
France | |
| Berbain et al. (2012) |
India | |
| Deepthi et al. (2015) |
Japan | |
| The Mineral Species of Japan (5th ed) +1 other reference |
Liberia | |
| a reconnaissance report. USGS Bulletin ... +1 other reference |
Madagascar | |
| Ackermand et al. (2006) |
| Ackermand et al. (2006) | |
| Morteani et al. (2006) |
Peru | |
| collections of Rock Currier +1 other reference |
| Econ Geol (1984) |
| Jesse Crawford photo +1 other reference |
| Hyršl (2011) | |
| Carles Millan Collection | |
Portugal | |
| Maijer 1965 |
Russia | |
| Jambor et al. (2001) +1 other reference |
| Pavel.M. Kartashov (n.d.) |
Rwanda | |
| F. Hatert et al. (PO4) +1 other reference |
| Gallagher et al. (1963) +2 other references |
| Bertossa | |
Senegal | |
| Keegan et al. (1979) +1 other reference |
| rruff.geo.arizona.edu (n.d.) |
Slovakia | |
| Juraj ŽItňan (2011) |
Spain | |
| Calvo Rebollar (2015) |
| Weibel (1955) | |
Sweden (TL) | |
| Schweizerische Mineralogische und Petrographische Mitteilungen 41 (1961) +1 other reference |
| Holtstam et al. (2019) |
| |
| Grensman (1989) +2 other references |
| Ek et al. (1990) |
Uganda | |
| Roberts (1948) +2 other references |
USA | |
| London et al. (1982) |
| Van Nostrand Reinholt Press: 304. +5 other references |
| Schooner (circa 1980s) |
| Schooner (circa 1985) +1 other reference |
| King et al. (1994) +1 other reference |
| Dick Dionne |
| Jensen et al. (1995) |
| Mineralogical Record 26:467 |
| Seaman (1953) +3 other references |
| Geological Society of America Abstracts ... +1 other reference | |
| Seaman (1953) +2 other references |
| Morrill (1960) | |
| Milton et al. (1986) |
| Smith et al. (2000) |
| Roberts et al. (1965) | |
| Anthony et al. (2000) |
| Seaman (1976) | |
| Rocks & Min.:60:110 | |
| Dietrich (1990) |
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Mundo Nuevo Mine, Mundo Nuevo, Huamachuco, Sánchez Carrión Province, La Libertad, Peru