Pyracmonite

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Photos of Pyracmonite (8)

Pyracmonite Gallery Search Photos of Pyracmonite

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Pyracmonite

Carola Mine, Freital, Sächsische Schweiz-Osterzgebirge, Saxony, Germany

Pyracmonite

Pécs-Vasas, Pécs District, Baranya County, Hungary

Pyracmonite

Shaft No. III, Komló, Komló District, Baranya County, Hungary

Pyracmonite

Carola Mine, Freital, Sächsische Schweiz-Osterzgebirge, Saxony, Germany

Pyracmonite

Pécs-Vasas, Pécs District, Baranya County, Hungary

Pyracmonite

Shaft No. III, Komló, Komló District, Baranya County, Hungary

Pyracmonite

Carola Mine, Freital, Sächsische Schweiz-Osterzgebirge, Saxony, Germany

Pyracmonite

Pécs-Vasas, Pécs District, Baranya County, Hungary

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About PyracmoniteHide

Formula:

(NH₄)₃Fe(SO₄)₃

Colour:

colorless to white

Lustre:

Vitreous

Specific Gravity:

2.22

Crystal System:

Trigonal

Name:

The name is after the Greek words πνρ = “fire” and ακμων = “anvil”; it recalls the mythical Hephaistos’s workshop, which allegedly was located on the Island of Vulcano

Type Locality:

ⓘ La Fossa crater, Vulcano Island, Lipari, Eolie Islands (Aeolian Islands), Messina Province, Sicily, Italy

Closely related to aluminopyracmonite (chemically, the Al analogue). Also chemically related to sabieite and ferroefremovite. The ammonium analogue of 'Unnamed (Na-Fe Sulphate)' (both trigonal but not isostructural).

Well-known also as a synthetic compound.

Classification of PyracmoniteHide

IMA status:

Approved

Approval Year:

2008

First Published:

2010

Nickel-Strunz 10th (pending) ed.:

7.AC.08

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
A : Sulfates (selenates, etc.) without additional anions, without H₂O
C : With medium-sized and large cations

Dana 8th ed.:

28.4.6.1

28 : ANHYDROUS ACID AND NORMAL SULFATES
4 : Miscellaneous

Physical Properties of PyracmoniteHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

colorless to white

Streak:

White

Cleavage:

None Observed

Fracture:

None observed

Density:

2.22(1) g/cm³ (Measured) 2.228 g/cm³ (Calculated)

Optical Data of PyracmoniteHide

Type:

Uniaxial

Comments:

Average RI = 1.562

Chemical Properties of PyracmoniteHide

Formula:

(NH₄)₃Fe(SO₄)₃

Elements listed:

Fe, H, N, O, S - search for minerals with similar chemistry

Crystallography of PyracmoniteHide

Crystal System:

Trigonal

Class (H-M):

3m - Ditrigonal Pyramidal

Space Group:

R3c

Cell Parameters:

a = 15.2171(14) Å, c = 8.9323(8) Å

Ratio:

a:c = 1 : 0.587

Unit Cell V:

1,791.26 Å³ (Calculated from Unit Cell)

Crystal StructureHide

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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)
0006332	Pyracmonite	Demartin F, Gramaccioli C M, Campostrini I (2010) Pyracmonite, (NH4)3Fe(SO4)3, a new ammonium iron sulfate from La Fossa crater, Vulcano, Aeolian Islands, Italy The Canadian Mineralogist 48 307-313		2010	La Fossa crater, Vulcano, Aeolian Islands, Italy	0	293
0009422	Pyracmonite	Palmer K J, Wong R Y, Lee K S (1972) The crystal structure of ferric ammonium sulfate trihydrate, FeNH4(SO4)23H2O* Acta Crystallographica B28 236-241		1972	synthetic	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Pyracmonite'
loop_
_publ_author_name
'Demartin F'
'Gramaccioli C M'
'Campostrini I'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 48 
_journal_year 2010
_journal_page_first 307
_journal_page_last 313
_publ_section_title
;
 Pyracmonite, (NH4)3Fe(SO4)3, a new ammonium iron sulfate
 from La Fossa crater, Vulcano, Aeolian Islands, Italy
;
_database_code_amcsd 0006332
_chemical_compound_source 'La Fossa crater, Vulcano, Aeolian Islands, Italy'
_chemical_formula_sum '(N2.601 K.399) H10.404 (Fe.893 Al.107) S3 O12'
_cell_length_a 15.2171
_cell_length_b 15.2171
_cell_length_c 8.9323
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1791.256
_exptl_crystal_density_diffrn      2.244
_symmetry_space_group_name_H-M 'R 3 c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'x,x-y,1/2+z'
  '2/3+x,1/3+x-y,5/6+z'
  '1/3+x,2/3+x-y,1/6+z'
  '-y,-x,1/2+z'
  '2/3-y,1/3-x,5/6+z'
  '1/3-y,2/3-x,1/6+z'
  '-x+y,y,1/2+z'
  '2/3-x+y,1/3+y,5/6+z'
  '1/3-x+y,2/3+y,1/6+z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
N   0.07773   0.30174   0.24189   0.86700   0.03220
K   0.07773   0.30174   0.24189   0.13300   0.03220
H1   0.03100   0.30700   0.26400   0.86700   0.05900
H2   0.11300   0.34200   0.16900   0.86700   0.04700
H3   0.06600   0.24400   0.20700   0.86700   0.07700
H4   0.11200   0.33200   0.32300   0.86700   0.09100
Fe   0.00000   0.00000   0.13800   0.89300   0.01631
Al   0.00000   0.00000   0.13800   0.10700   0.01631
S   0.16913   0.14291   0.38360   1.00000   0.02027
O1   0.11980   0.09340   0.52150   1.00000   0.05850
O2   0.09084   0.11849   0.26680   1.00000   0.02990
O3   0.22180   0.25160   0.40720   1.00000   0.06930
O4   0.23840   0.11280   0.33390   1.00000   0.07300
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
N 0.03150 0.03240 0.03300 0.01630 -0.00110 0.00480
K 0.03150 0.03240 0.03300 0.01630 -0.00110 0.00480
Fe 0.01909 0.01909 0.01070 0.00954 0.00000 0.00000
Al 0.01909 0.01909 0.01070 0.00954 0.00000 0.00000
S 0.01528 0.02044 0.01890 0.00431 0.00060 -0.00210
O1 0.03900 0.08030 0.01840 0.00130 0.00430 0.01800
O2 0.03840 0.02520 0.02160 0.01260 -0.00950 -0.00340
O3 0.07320 0.02380 0.06850 -0.00750 -0.03240 -0.01600
O4 0.05130 0.12380 0.07210 0.06500 -0.02660 -0.05140

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
7.596 Å	(100)
4.384 Å	(5)
4.358 Å	(23)
4.247 Å	(5)
3.371 Å	(26)
3.320 Å	(30)
2.863 Å	(8)
2.829 Å	(14)

Type Occurrence of PyracmoniteHide

Type Locality:

ⓘ La Fossa crater, Vulcano Island, Lipari, Eolie Islands (Aeolian Islands), Messina Province, Sicily, Italy

General Appearance of Type Material:

aggregates of colorless to white elongate hexagonal prismatic crystals up to 0.2 mm in length

Place of Conservation of Type Material:

Reference Collection of the Dipartimento di Chimica Strutturale e Stereochimica Inorganica, Università degli Studi di Milano, specimen number 2008–04.

Geological Setting of Type Material:

medium-temperature (~250°C) intracrater fumarole developed on a pyroclastic breccia

Associated Minerals at Type Locality:

Salammoniac

Kremersite

Reference:

DeMartin, F., Gramaccioli, C. M., and Campostrini, I. (2010) Pyracmonite (NH4)3Fe(SO4)3 from La Fossa crater, Vulcano, Aeolian islands, Italy. The Canadian Mineralogist: 48: 307-313.

Download:

https://rruff.info/rruff_1.0/uploads/CM48_307.pdf

Synonyms of PyracmoniteHide

IMA2008-029

Common AssociatesHide

Associated Minerals Based on Photo Data:

1 photo of Pyracmonite associated with Ammonioalunite	(NH₄)Al₃(SO₄)₂(OH)₆
1 photo of Pyracmonite associated with Alunite	KAl₃(SO₄)₂(OH)₆

Related Minerals - Nickel-Strunz Grouping Hide

7.AC.	Aluminopyracmonite	(NH₄)₃Al(SO₄)₃	Trig. 3 : R3
7.AC.	Acmonidesite	(NH₄,K,Pb)₈NaFe²⁺₄(SO₄)₅Cl₈	Orth. 2 2 2 : C2 2 2₁
7.AC.05	Vanthoffite	Na₆Mg(SO₄)₄	Mon. 2/m : P2₁/b
7.AC.10	Efremovite	(NH₄)₂Mg₂(SO₄)₃	Iso.
7.AC.10	Langbeinite	K₂Mg₂(SO₄)₃	Iso. 2 3 : P2₁ 3
7.AC.10	Manganolangbeinite	K₂Mn₂(SO₄)₃	Iso. 2 3 : P2₁ 3
7.AC.15	Yavapaiite	KFe(SO₄)₂	Mon. 2/m : B2/m
7.AC.15	Eldfellite	NaFe³⁺(SO₄)₂	Mon. 2/m : B2/m
7.AC.20	Godovikovite	(NH₄)Al(SO₄)₂	Trig. 3 2 : P3 2 1
7.AC.20	Sabieite	(NH₄)Fe³⁺(SO₄)₂	Trig. 3 2 : P3 2 1
7.AC.25	Thénardite	Na₂SO₄	Orth. mmm (2/m 2/m 2/m) : Fddd
7.AC.30	Metathénardite	Na₂SO₄	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
7.AC.35	Aphthitalite	(K,Na)₃Na(SO₄)₂	Trig.

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

28.4.6.2

Alumoklyuchevskite

K₃Cu₃(Al,Fe³⁺)(SO₄)₄O₂

Tric. 1 : P1

Fluorescence of PyracmoniteHide

In UV light:

none

Other InformationHide

Notes:

The mineral is not hygroscopic and is stable in air

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 PyracmoniteHide

Reference List:

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)

Ciriotti, M.E., Fascio, L., Pasero, M. (2009) Italian Type Minerals. Edizioni Plus, Università di Pisa, Pisa, Italy, 357 pp.

DeMartin, F., Gramaccioli, C. M., and Campostrini, I. (2010) Pyracmonite (NH₄)₃Fe(SO₄)₃ from La Fossa crater, Vulcano, Aeolian islands, Italy. The Canadian Mineralogist: 48: 307-313.

Internet Links for PyracmoniteHide

mindat.org URL:

https://www.mindat.org/min-38828.html
Please feel free to link to this page.

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External Links:

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Look for Pyracmonite on Wikipedia

Look for Pyracmonite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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Localities for PyracmoniteHide

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.


Germany
North Rhine-Westphalia Cologne Aachen Alsdorf ⓘ Anna Mine	Blaß, G. and Strehler, H. (1993): Mineralbildungen in einer durch Selbstentzündung brennenden Bergehalde des Aachener Steinkohlenreviers. Mineralien-Welt 4 (4), 35-42. (in German); Witzke, T., de Wit, F., Kolitsch, U. and Blaß, G. (2015): Mineralogy of the Burning Anna I Coal Mine Dump, Alsdorf, Germany. Chapter 7, pp. 203-240, in: Stracher, G. B., Prakash, A. and Sokol, E. V.: Coal and Peat Fires: A Global Perspective, Volume 3: Case Studies - Coal Fires, Elsevier, 786 pp.
Saxony Sächsische Schweiz-Osterzgebirge Freital ⓘ Carola Mine (Königin Carola Mine; Paul Berndt Mine)	Witzke, T. (1990): Sekundärminerale und Haldenbrandminerale des Döhlener Beckens.- Diplomarbeit, Bergakademie Freiberg, Sektion Mineralogie/Geochemie [as unnamed mineral]; Witzke, T. (2012): Neubestimmungen von Fundstellen in Sachsen: Pyracmonit, Philipsbornit, Mottramit, Mansfieldit, Hydrocerussit und weitere. Aufschluss, 63, 295-300.

Hungary
Baranya County Pécs District ⓘ Pécs-Vasas	Collector:G.Koller,Identified:Szakáll-Fehér,2012

Italy (TL)
Sicily Messina Province Eolie Islands (Aeolian Islands) Lipari Vulcano Island ⓘ La Fossa crater (TL)	DeMartin, F., Gramaccioli, C. M., and Campostrini, I. (2010) Pyracmonite (NH4)3Fe(SO4)3 from La Fossa crater, Vulcano, Aeolian islands, Italy. The Canadian Mineralogist: 48: 307-313.

Poland
Lower Silesian Voivodeship Kłodzko County Nowa Ruda Słupiec Mine ⓘ Słupiec heap	Ł. Kruszewski PXRD data
Silesian Voivodeship Rybnik City County ⓘ Rybnik-Rymer coal dump	Kruszewski, Ł., Fabiańska, M.J., Segit, T., Kusy, D., Motyliński, R., Ciesielczuk, J., Deput, E., (2019): Carbon-nitrogen compounds, alcohols, mercaptans, monoterpenes, acetates, aldehydes, ketones, SF6, PH3, and other fire gases in coal-mining waste heaps of Upper Silesian Coal Basin (Poland) – a re-investigation by means of in situ FTIR external database approach. Science of The Total Environment (in press)

USA
Ohio Huron Co. Huron River ⓘ Huron Shale burn site	Dr Pete Richards

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Pyracmonite

About PyracmoniteHide

Classification of PyracmoniteHide

Physical Properties of PyracmoniteHide

Optical Data of PyracmoniteHide

Chemical Properties of PyracmoniteHide

Crystallography of PyracmoniteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Type Occurrence of PyracmoniteHide

Synonyms of PyracmoniteHide

Common AssociatesHide

Related Minerals - Nickel-Strunz GroupingHide

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

Fluorescence of PyracmoniteHide

Other InformationHide

References for PyracmoniteHide

Internet Links for PyracmoniteHide

Localities for PyracmoniteHide

Locality ListHide

Related Minerals - Nickel-Strunz Grouping Hide