Ferrochiavennite
A valid IMA mineral species
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About Ferrochiavennite
Formula:
Ca1-2Fe[(Si,Al,Be)5Be2O13(OH)2] · 2H2O
Colour:
Beige, pale yellow, pale green
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
2.67
Crystal System:
Monoclinic
Member of:
Name:
Fe-dominant analogue of chiavennite.
Co-Type Localities:
Isostructural with:
Interrupted framework zeolite. Fe-dominant analogue of chiavennite. See the latter species page for structure details.
Unique Identifiers
Mindat ID:
43568
Long-form identifier:
mindat:1:1:43568:2
IMA Classification of Ferrochiavennite
Approved
IMA Formula:
Ca1-2Fe2+(Si,Al,Be)5Be2O13(OH)2·2H2O
Approval year:
2012
First published:
2013
Type description reference:
Grice, J. D., Kristiansen, R., Friis, H., Rowe, R., Poirier, G. G., Selbekk, R. S., Cooper, M. A., Larsen, A. O. (2013) Ferrochiavennite, a new beryllium silicate zeolite from syenite pegmatites in the Larvik Plutonic Complex, Oslo region, Southern Norway. The Canadian Mineralogist, 51 (2) 285-296 doi:10.3749/canmin.51.2.285
Classification of Ferrochiavennite
9.GF.25
9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
F : Other Rare Zeolites
9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
F : Other Rare Zeolites
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 |
|---|---|---|
| Fcve | 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 Ferrochiavennite
Vitreous
Transparency:
Translucent
Colour:
Beige, pale yellow, pale green
Streak:
White
Hardness:
3 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
2.67(2) g/cm3 (Measured) 2.709 g/cm3 (Calculated)
Comment:
Measured by flotation in heavy liquids
Optical Data of Ferrochiavennite
Type:
Biaxial (+)
RI values:
nα = 1.583(1) nβ = 1.589(2) nγ = 1.602
2V:
Measured: 62° (4), Calculated: 69°
Max. Birefringence:
δ = 0.019
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:
Moderate
Dispersion:
Could not be measured
Pleochroism:
Non-pleochroic
Chemistry of Ferrochiavennite
Mindat Formula:
Ca1-2Fe[(Si,Al,Be)5Be2O13(OH)2] · 2H2O
Element Weights:
Crystallography of Ferrochiavennite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 8.759 Å, b = 4.864 Å, c = 31.258 Å
β = 90.31°
β = 90.31°
Ratio:
a:b:c = 1.801 : 1 : 6.426
Unit Cell V:
1,331.69 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Spherules up to ~ 2 mm in diameter (Blåfjell). Individual crystals are about 0.2 × 0.2 × 0.02 mm, platy on {001} and spear shaped along [100].
Twinning:
common, on {100}
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 15.555 Å | (100) |
| 4.104 Å | (29) |
| 3.938 Å | (36) |
| 3.909 Å | (60) |
| 3.820 Å | (30) |
| 3.251 Å | (66) |
| 3.186 Å | (27) |
| 2.884 Å | (64) |
Reference:
Grice, J. D., Kristiansen, R., Friis, H., Rowe, R., Poirier, G. G., Selbekk, R. S., Cooper, M. A., Larsen, A. O. (2013) Ferrochiavennite, a new beryllium silicate zeolite from syenite pegmatites in the Larvik Plutonic Complex, Oslo region, Southern Norway. The Canadian Mineralogist, 51 (2) 285-296 doi:10.3749/canmin.51.2.285
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites | |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Geological Setting:
Syenite pegmatite dikes in the Larvik Plutonic Complex
Type Occurrence of Ferrochiavennite
Co-Type Localities:
General Appearance of Type Material:
Beige to pale yellow spherules up to ~ 2 mm in diameter (Blåfjell); Very pale green spherules up to 1 mm across, often only in the rim of the spherules (Tvedalite in the center) (AS Granit Quarry),
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, Canada, specimen number CNMMC 86554, and the Natural History Museum, Oslo, Norway, specimen numbers 43434 and 43435
Geological Setting of Type Material:
In a syenite pegmatite at Langangen, Blåfjell, Norway (59º5’34’’N 9º41’38’’E) and the A/S Granite Quarry, Tvedalen, Vestfold, Norway
Associated Minerals at Type Locality:
Reference:
Grice, J. D., Kristiansen, R., Friis, H., Rowe, R., Poirier, G. G., Selbekk, R. S., Cooper, M. A., Larsen, A. O. (2013) Ferrochiavennite, a new beryllium silicate zeolite from syenite pegmatites in the Larvik Plutonic Complex, Oslo region, Southern Norway. The Canadian Mineralogist, 51 (2) 285-296 doi:10.3749/canmin.51.2.285
Synonyms of Ferrochiavennite
Other Language Names for Ferrochiavennite
Dutch:Ferrochiavenniet
German:Ferrochiavennit
Relationship of Ferrochiavennite to other Species
Member of:
Other Members of Zeolite Group:
| Alflarsenite | NaCa2Be3Si4O13(OH) · 2H2O | Mon. 2 : P21 |
| Amicite | K2Na2Al4Si4O16 · 5H2O | Mon. 2 |
| Ammonioleucite | (NH4)(AlSi2O6) | Tet. 4/m : I41/a |
| Analcime | Na(AlSi2O6) · H2O | Tric. 1 : P1 |
| Arzamastsevite | K6Al5Si6O20(OH)4Cl | Tet. 42m : I42m |
| Bellbergite | (K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2O | Hex. |
| Bikitaite | LiAlSi2O6 · H2O | Tric. 1 : P1 |
| Boggsite | Ca8Na3(Si,Al)96O192 · 70H2O | Orth. mmm(2/m2/m2/m) : Imma |
| Brewsterite Subgroup | Zeolite Group. | |
| Chabazite-Levyne Subgroup | M[Al2Si4O12] · 6H2O | |
| Chiavennite | CaMnBe2Si5O13(OH)2 · 2H2O | Mon. 2/m : P21/b |
| Clinoptilolite Subgroup | (Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O | |
| Cowlesite | CaAl2Si3O10 · 6H2O | Orth. mmm(2/m2/m2/m) |
| Dachiardite Subgroup | Zeolite Group. | |
| Direnzoite | NaK6MgCa2(Al13Si47O120) · 36H2O | Orth. mmm(2/m2/m2/m) : Pmmn |
| Edingtonite | Ba[Al2Si3O10] · 4H2O | Orth. 222 : P212121 |
| Epistilbite | CaAl2Si6O16 · 5H2O | Mon. |
| Erionite Subgroup | M2[Al4Si14O36] · 15H2O | |
| Fabrièsite | Na3Al3Si3O12 · 2H2O | Orth. mm2 : Pmm2 |
| Faujasite Subgroup | M3.5[Al7Si17O48] · 32H2O | |
| Ferrierite Subgroup | Name used for unanalysed specimens that could be either ferrierite-K, ferrierite-Mg, ... | |
| Flörkeite | (K3Ca2Na)[Al8Si8O32] · 12H2O | Tric. 1 : P1 |
| Garronite Subgroup | ||
| Gaultite | Na4Zn2Si7O18 · 5H2O | Orth. mm2 : Fdd2 |
| Gismondine Subgroup | Zeolite Group. | |
| Gmelinite Subgroup | In 1997, gmelinite was split into Gmelinite-Ca, Gmelinite-Na and Gmelinite-K. | |
| Gobbinsite | Na5(Si11Al5)O32 · 11H2O | Orth. mmm(2/m2/m2/m) : Pnma |
| Goosecreekite | Ca[Al2Si6O16] · 5H2O | Mon. 2 : P21 |
| Gottardiite | Na3Mg3Ca5Al19Si117O272 · 93H2O | Orth. mmm(2/m2/m2/m) : Cmca |
| Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O | |
| Hsianghualite | Ca3Li2(Be3Si3O12)F2 | Iso. 23 : I213 |
| Kalborsite | K6Al4BSi6O20(OH)4Cl | Tet. 42m : P421c |
| Kirchhoffite | Cs(BSi2O6) | Tet. 4/mmm(4/m2/m2/m) : I41/acd |
| Laumontite | CaAl2Si4O12 · 4H2O | Mon. 2/m : B2/m |
| Leucite | K(AlSi2O6) | Tet. 4/m : I41/a |
| Limousinite | BaCa[Be4P4O16] · 6H2O | Mon. 2/m : P21/b |
| Lithosite | K6Al4Si8O25 · 2H2O | Mon. |
| Loomisite | Ba[Be2P2O8] · H2O | Mon. m |
| Lovdarite | K2Na6Be4Si14O36 · 9H2O | Orth. mm2 |
| Maricopaite | Pb7Ca2(Si,Al)48O100 · 32H2O | Orth. |
| Martinandresite | Ba2(Al4Si12O32) · 10H2O | Orth. mmm(2/m2/m2/m) : Pmmn |
| Mazzite Subgroup | Zeolite Group. | |
| Meierite | Ba44Si66Al30O192Cl25(OH)33 | Iso. m3m(4/m32/m) : Im3m |
| Merlinoite | K5Ca2(Si23Al9)O64 · 24H2O | Orth. mmm(2/m2/m2/m) : Immm |
| Montesommaite | (K,Na)9Al9Si23O64 · 10H2O | Orth. mm2 : Fdd2 |
| Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O | Orth. |
| Mountainite | KNa2Ca2[Si8O19(OH)] · 6H2O | Mon. 2/m : P2/b |
| Mutinaite | Na3Ca4Si85Al11O192 · 60H2O | Orth. mmm(2/m2/m2/m) : Pnma |
| Nabesite | Na2BeSi4O10 · 4H2O | Orth. 222 : P212121 |
| Natrolite Subgroup | A subgroup of the Zeolite Group. | |
| Offretite | KCaMg(Si13Al5)O36 · 15H2O | Hex. 6m2 : P6m2 |
| Pahasapaite | Li8(Ca,Li,K)10.5Be24(PO4)24 · 38H2O | Iso. 23 : I23 |
| Parthéite | Ca2(Si4Al4) O15 (OH)2 · 4H2O | Mon. 2/m : B2/b |
| Paulingite Subgroup | Paulingite was originally described in 1960. | |
| Perlialite | K9Na(Ca,Sr)[Al2Si4O12]6 · 15H2O | Hex. 6/mmm(6/m2/m2/m) : P6/mmm |
| Phillipsite Subgroup | (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O | |
| Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O | Iso. m3m(4/m32/m) : Ia3d |
| Roggianite | Ca2Be(OH)2Al2Si4O13 · 2.5H2O | Tet. 4/mmm(4/m2/m2/m) : I4/mcm |
| Rongibbsite | Pb2(Si4Al)O11(OH) | Mon. 2/m : B2/m |
| Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O | |
| Terranovaite | (Na,Ca)8(Si68Al12)O160 · 29H2O | Orth. |
| Thomsonite Subgroup | The large majority of "thomsonite" is thomsonite-Ca. | |
| Thornasite | Na12Th4+3(Si8O19)4 · 18H2O | Trig. 3m : R3m |
| Tschernichite | (Ca,Na2)[Al2Si4O12] · 4-8H2O | Tet. 4/mmm(4/m2/m2/m) : P4/mmm |
| Tschörtnerite | Ca4(Ca,Sr,K,Ba)3Cu3[Al3Si3O12]4(OH)8 · nH2O | Iso. m3m(4/m32/m) : Fm3m |
| 'UM1996-38-SiO:AlCaHNa' | Na-Ca-Al-Si-O-H | |
| 'UM1999-33-SiO:AlHKNa' | K7Na5Al12Si20O64 · 24H2O | |
| 'UM2002-40-SiO:AlCaHKMgNa' | (Mg,Ca,Na,K)7.5(Al12.8Si51.2)O128 · 65H2O | Tet. 422 : P4122 |
| 'Unnamed (Ca analogue of Merlinoite)' | (Ca,K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O ? | |
| Wairakite | Ca(Al2Si4O12) · 2H2O | Mon. 2/m : B2/m |
| Weinebeneite | CaBe3(PO4)2(OH)2 · 4H2O | Mon. m : Bb |
| Wenkite | (Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2O | Hex. 6m2 : P62m |
| Wilancookite | (Ba5Li2◻)Ba6Be24P24O96 · 26H2O | Iso. 23 : I23 |
| Willhendersonite | KCa[Al3Si3O12] · 5H2O | Tric. 1 : P1 |
| Yugawaralite | CaAl2Si6O16 · 4H2O | Mon. m : Pb |
Common Associates
Associations Based on Photo Data:
| 2 photos of Ferrochiavennite associated with Analcime | Na(AlSi2O6) · H2O |
| 1 photo of Ferrochiavennite associated with Gonnardite | (Na,Ca)2(Si,Al)5O10 · 3H2O |
| 1 photo of Ferrochiavennite associated with Tetrawickmanite | Mn2+[Sn4+(OH)6] |
Related Minerals - Strunz-mindat Grouping
| 9.GF.05 | Terranovaite | (Na,Ca)8(Si68Al12)O160 · 29H2O |
| 9.GF.10 | Gottardiite | Na3Mg3Ca5Al19Si117O272 · 93H2O |
| 9.GF.15 | Lovdarite | K2Na6Be4Si14O36 · 9H2O |
| 9.GF.20 | Gaultite | Na4Zn2Si7O18 · 5H2O |
| 9.GF.25 | Chiavennite | CaMnBe2Si5O13(OH)2 · 2H2O |
| 9.GF.30 | Tschernichite | (Ca,Na2)[Al2Si4O12] · 4-8H2O |
| 9.GF.35 | Mutinaite | Na3Ca4Si85Al11O192 · 60H2O |
| 9.GF.40 | Tschörtnerite | Ca4(Ca,Sr,K,Ba)3Cu3[Al3Si3O12]4(OH)8 · nH2O |
| 9.GF.55 | Direnzoite | NaK6MgCa2(Al13Si47O120) · 36H2O |
| 9.GF.60 | Meierite | Ba44Si66Al30O192Cl25(OH)33 |
| 9.GF.65 | Rongibbsite | Pb2(Si4Al)O11(OH) |
Fluorescence of Ferrochiavennite
Non-fluorescent
Other Information
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 Ferrochiavennite
mindat.org URL:
https://www.mindat.org/min-43568.html
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References for Ferrochiavennite
Reference List:
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2013) IMA Commission on New Minerals, Nomenclature and Classification. CNMNC Newsletter No. 15. Mineralogical Magazine, 77 (1) 1-12 doi:10.1180/minmag.2013.077.1.01
Grice, J. D., Kristiansen, R., Friis, H., Rowe, R., Poirier, G. G., Selbekk, R. S., Cooper, M. A., Larsen, A. O. (2013) Ferrochiavennite, a new beryllium silicate zeolite from syenite pegmatites in the Larvik Plutonic Complex, Oslo region, Southern Norway. The Canadian Mineralogist, 51 (2) 285-296 doi:10.3749/canmin.51.2.285
Localities for Ferrochiavennite
Showing 3 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.
Norway | |
| Grice et al. (2013) |
| Grice et al. (2013) |
| Grice et al. (2013) |
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A/S Granit Quarry, Tuften, Tvedalen, Larvik Commune, Vestfold, Norway