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
GUID
(UUID V4):
(UUID V4):
8ba32a24-8a66-4ad7-96ed-7c7215e05f32
IMA Classification of Ferrochiavennite
Approved
IMA Formula:
Ca1-2Fe[(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 |
---|---|---|
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
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:
Moderate
Dispersion:
Could not be measured
Pleochroism:
Non-pleochroic
Chemistry of Ferrochiavennite
Mindat Formula:
Ca1-2Fe[(Si,Al,Be)5Be2O13(OH)2] · 2H2O
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) |
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. Canadian Mineralogist: 51: 285-296
Synonyms of Ferrochiavennite
Relationship of Ferrochiavennite to other Species
Member of:
Other Members of this 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 |
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/m 2/m 2/m) : Imma |
Brewsterite Subgroup | Zeolite Group. | |
Chabazite-Levyne Subgroup | M[Al2Si4O12] · 6H2O | |
Chiavennite | CaMnBe2Si5O13(OH)2 · 2H2O | Mon. 2/m : P21/b |
Clinoptilolite Subgroup | M3-6(Si30Al6)O72 · 20H2O | |
Cowlesite | CaAl2Si3O10 · 6H2O | Orth. mmm (2/m 2/m 2/m) |
Dachiardite Subgroup | Zeolite Group. | |
Direnzoite | NaK6MgCa2(Al13Si47O120) · 36H2O | Orth. mmm (2/m 2/m 2/m) : Pmmn |
Edingtonite | Ba[Al2Si3O10] · 4H2O | Orth. 2 2 2 : P21 21 21 |
Epistilbite | CaAl2Si6O16 · 5H2O | Mon. |
Erionite Subgroup | M2[Al4Si14O36] · 15H2O | |
Faujasite Subgroup | M3.5[Al7Si17O48] · 32H2O | |
Ferrierite Subgroup | Zeolite Group. | |
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/m 2/m 2/m) : Pnma |
Goosecreekite | Ca[Al2Si6O16] · 5H2O | Mon. 2 : P21 |
Gottardiite | Na3Mg3Ca5Al19Si117O272 · 93H2O | Orth. mmm (2/m 2/m 2/m) : Cmca |
Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O | |
Hsianghualite | Ca3Li2(Be3Si3O12)F2 | Iso. 4 3 2 : I41 3 2 |
Kirchhoffite | Cs(BSi2O6) | Tet. 4/mmm (4/m 2/m 2/m) : I41/acd |
Laumontite | CaAl2Si4O12 · 4H2O | Mon. 2/m : B2/m |
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/m 2/m 2/m) : Pmmn |
Mazzite Subgroup | Zeolite Group. | |
Merlinoite | (K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O | Orth. mmm (2/m 2/m 2/m) : Immm |
Montesommaite | (K,Na)9Al9Si23O64 · 10H2O | Orth. mm2 : Fdd2 |
Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O | Orth. |
Mutinaite | Na3Ca4Si85Al11O192 · 60H2O | Orth. mmm (2/m 2/m 2/m) : Pnma |
Nabesite | Na2BeSi4O10 · 4H2O | Orth. 2 2 2 : P21 21 21 |
Natrolite Subgroup | A subgroup of the Zeolite Group. | |
Offretite | KCaMg(Si13Al5)O36 · 15H2O | Hex. 6 m2 : P6m2 |
Pahasapaite | Li8(Ca,Li,K)10.5Be24(PO4)24 · 38H2O | Iso. 2 3 : I2 3 |
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/m 2/m 2/m) : P6/mmm |
Phillipsite Subgroup | Zeolite Group. | |
Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O | Iso. m3m (4/m 3 2/m) : Ia3d |
Roggianite | Ca2Be(OH)2Al2Si4O13 · 2.5H2O | Tet. 4/mmm (4/m 2/m 2/m) : I4/mcm |
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. | |
Tschernichite | (Ca,Na2)[Al2Si4O12] · 4-8H2O | Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm |
Tschörtnerite | Ca4(Ca,Sr,K,Ba)3Cu3[Al3Si3O12]4(OH)8 · nH2O | Iso. m3m (4/m 3 2/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. 4 2 2 : P41 2 2 |
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. 6 m2 : P62m |
Willhendersonite | KCa[Al3Si3O12] · 5H2O | Tric. 1 : P1 |
Yugawaralite | CaAl2Si6O16 · 4H2O | Mon. m : Pb |
Common Associates
Associated Minerals Based on Photo Data:
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.50 | Thornasite | (Na,K)12Th3[Si8O19]4 · 18H2O |
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
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
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
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).
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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
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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Ferrochiavennite dike, Blåfjell, Kokkersvold - Blåfjell E18 roadcuts, Langangen, Porsgrunn, Telemark, Norway