Ferrierite-Mg
About Ferrierite-Mg
Unique Identifiers
IMA Classification of Ferrierite-Mg
Classification of Ferrierite-Mg
9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
D : Chains of 6-membered rings – tabular zeolites
Mineral Symbols
| Symbol | Source | Reference for Standard |
|---|---|---|
| Frr-Mg | 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 Ferrierite-Mg
on {100}
Optical Data of Ferrierite-Mg
Based on recorded range of RI values above.
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.
Chemistry of Ferrierite-Mg
Crystallography of Ferrierite-Mg
Crystal Structure
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0010964 | Ferrierite-Mg | Alberti A, Sabelli C (1987) Statistical and true symmetry of ferrierite: possible absence of straight T-O-T bridging bonds Zeitschrift fur Kristallographie 178 249-256 | ![]() | 1987 | Monastir, Sardinia, Italy | 0 | 293 |
| 0017696 | Ferrierite-Mg | Vaughan P A (1966) The crystal structure of the zeolite ferrierite Acta Crystallographica 21 983-990 | ![]() | 1966 | Kamloops Lake, British Columbia, Canada | 0 | 293 |
X-Ray Powder Diffraction
| d-spacing | Intensity |
|---|---|
| 9.56 Å | (80) |
| 3.99 Å | (29) |
| 3.971 Å | (60) |
| 3.794 Å | (55) |
| 3.700 Å | (37) |
| 3.533 Å | (100) |
| 3.489 Å | (50) |
Geological Environment
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earth’s earliest Hadean crust | >4.50 |
| 10 : Basalt-hosted zeolite minerals | |
| Stage 3b: Earth’s earliest hydrosphere | >4.45 |
| 16 : Low-? aqueous alteration of Hadean subaerial lithologies (see also #23) | |
| Near-surface Processes | |
| 22 : Hydration and low-? subsurface aqueous alteration (see also #23) |
Type Occurrence of Ferrierite-Mg
McGill University, Redpath Museum, Montreal, Quebec, Canada, number RM F3903 T.
Natural History Museum, London, United Kingdom, numbers BM 1930, 1008-1009 / BM 1919, 147-148.
Other Language Names for Ferrierite-Mg
Relationship of Ferrierite-Mg to other Species
| Ferrierite-K | (K,Na)5(Si31Al5)O72 · 18H2O | Orth. mmm(2/m2/m2/m) : Immm |
| Ferrierite-Na | (Na,K)5(Si31Al5)O72 · 18H2O | Mon. 2/m |
| Ferrierite-NH4 | (NH4,Mg0.5)5(Al5Si31O72) · 22H2O | Orth. mmm(2/m2/m2/m) : Immm |
Common Associates
| 34 photos of Ferrierite-Mg associated with Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| 30 photos of Ferrierite-Mg associated with Calcite | CaCO3 |
| 19 photos of Ferrierite-Mg associated with 'Chalcedony' | SiO2 |
| 17 photos of Ferrierite-Mg associated with Clinoptilolite Subgroup | (Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O |
| 6 photos of Ferrierite-Mg associated with Quartz | SiO2 |
| 3 photos of Ferrierite-Mg associated with 'Carbonate-rich Hydroxylapatite' | Ca5(PO4,CO3)3(OH,O) |
| 3 photos of Ferrierite-Mg associated with Clinoptilolite-K | K6(Si30Al6)O72 · 20H2O |
| 2 photos of Ferrierite-Mg associated with Analcime | Na(AlSi2O6) · H2O |
| 2 photos of Ferrierite-Mg associated with Clinoptilolite-Ca | Ca3(Si30Al6)O72 · 20H2O |
| 2 photos of Ferrierite-Mg associated with Harmotome | Ba2(Si12Al4)O32 · 12H2O |
Related Minerals - Strunz-mindat Grouping
| 9.GD.05 | Gmelinite-Ca | Ca2(Si8Al4)O24 · 11H2O |
| 9.GD.05 | Gmelinite-K | K4(Si8Al4O24) · 11H2O |
| 9.GD.05 | Gmelinite-Na | Na4(Si8Al4)O24 · 11H2O |
| 9.GD.10 | Chabazite-Mg | (Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24] · 10H2O |
| 9.GD.10 | Willhendersonite | KCa[Al3Si3O12] · 5H2O |
| 9.GD.10 | Chabazite-Ca | (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O |
| 9.GD.10 | Chabazite-K | (K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| 9.GD.10 | Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| 9.GD.10 | Chabazite-Sr | Sr2[Al2Si4O12]2 · 12H2O |
| 9.GD.15 | Lévyne-Ca | (Ca,Na2,K2)[Al2Si4O12] · 6H2O |
| 9.GD.15 | Lévyne-Na | (Na2,Ca,K2)[Al2Si4O12] · 6H2O |
| 9.GD.20 | Erionite-Ca | (Ca,K2,Na2)2[Al4Si14O36] · 15H2O |
| 9.GD.20 | Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| 9.GD.20 | Erionite-Na | (Na2,K2,Ca)2[Al4Si14O36] · 15H2O |
| 9.GD.20 | Bellbergite | (K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2O |
| 9.GD.25 | Offretite | KCaMg(Si13Al5)O36 · 15H2O |
| 9.GD.25 | Wenkite | (Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2O |
| 9.GD.30 | Faujasite-Ca | (Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2O |
| 9.GD.30 | Faujasite-Mg | (Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2O |
| 9.GD.30 | Faujasite-Na | (Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2O |
| 9.GD.35 | Maricopaite | Pb7Ca2(Si,Al)48O100 · 32H2O |
| 9.GD.35 | Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| 9.GD.40 | Dachiardite-K | K4(Si20Al4O48) · 13H2O |
| 9.GD.40 | Dachiardite-Ca | (Ca,Na2,K2)5Al10Si38O96 · 25H2O |
| 9.GD.40 | Dachiardite-Na | (Na2,Ca,K2)5Al10Si38O96 · 25H2O |
| 9.GD.45 | Epistilbite | CaAl2Si6O16 · 5H2O |
| 9.GD.50 | Ferrierite-K | (K,Na)5(Si31Al5)O72 · 18H2O |
| 9.GD.50 | Ferrierite-Na | (Na,K)5(Si31Al5)O72 · 18H2O |
| 9.GD.50 | Ferrierite-NH4 | (NH4,Mg0.5)5(Al5Si31O72) · 22H2O |
| 9.GD.55 | Bikitaite | LiAlSi2O6 · H2O |
Radioactivity
| Element | % Content | Activity (Bq/kg) | Radiation Type |
|---|---|---|---|
| Uranium (U) | 0.0000% | 0 | α, β, γ |
| Thorium (Th) | 0.0000% | 0 | α, β, γ |
| Potassium (K) | 3.0002% | 930 | β, γ |
For comparison:
- Banana: ~15 Bq per fruit
- Granite: 1,000–3,000 Bq/kg
- EU exemption limit: 10,000 Bq/kg
Note: Risk is shown relative to daily recommended maximum exposure to non-background radiation of 1000 µSv/year. Note that natural background radiation averages around 2400 µSv/year so in reality these risks are probably extremely overstated! With infrequent handling and safe storage natural radioactive minerals do not usually pose much risk.
Note: The mass selector refers to the mass of radioactive mineral present, not the full specimen, also be aware that the matrix may also be radioactive, possibly more radioactive than this mineral!
Activity: –
| Distance | Dose rate | Risk |
|---|---|---|
| 1 cm | ||
| 10 cm | ||
| 1 m |
The external dose rate (D) from a radioactive mineral is estimated by summing the gamma radiation contributions from its Uranium, Thorium, and Potassium content, disregarding daughter-product which may have a significant effect in some cases (eg 'pitchblende'). This involves multiplying the activity (A, in Bq) of each element by its specific gamma ray constant (Γ), which accounts for its unique gamma emissions. The total unshielded dose at 1 cm is then scaled by the square of the distance (r, in cm) and multiplied by a shielding factor (μshield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h).
D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshield
Other Information
Internet Links for Ferrierite-Mg
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References for Ferrierite-Mg
Localities for Ferrierite-Mg
Showing 42 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.
Australia | |
| Keith F Compton collection |
| England et al. (1978) |
| Birch (1989) |
Austria | |
| J. Mörtl et al. (2003) |
| C. Auer (2023) |
| Auer (2026) |
| Dietmar Jakely (2012) |
| Zirkl (1973) +1 other reference |
Bulgaria | |
| Tschernich (1992) |
| Encheva | |
Canada (TL) | |
| Graham (1918) +2 other references |
| Tschernich (1992) | |
| Tschernich (1992) |
| Tschernich (1992) |
Czech Republic | |
| Smutný (1997) |
| PAULIŠ et al. (2022) |
Germany | |
| Baumgärtl (2014) |
Hungary | |
| Christophe Boutry collection |
Italy | |
| Ion Microprobe by Passaglia (Univ. Modena) |
| Ion Microprobe by Passaglia at Modena ... |
| Orlandi et al. (1983) +1 other reference |
| Preite (2003) | |
| Fabre (n.d.) | |
| Passaglia et al. (2010) +1 other reference |
| Passaglia et al. (2010) |
| Passaglia et al. (2010) |
| Alietti et al. (1967) +7 other references |
| Della Costa (2014) +1 other reference |
| Boscardin et al. (2011) +2 other references |
| Della Costa (2014) +1 other reference | |
| Passaglia et al. (2010) +1 other reference | |
| Passaglia et al. (2010) +2 other references | |
| Passaglia et al. (2010) |
| Passaglia et al. (2010) |
| Daleffe et al. (1997) +3 other references |
Japan | |
| Yamada (1997) |
| Mineralogical Journal Vol. 18 (1996) | |
| Yajima et al (1971) |
Portugal | |
| Pedro Alves analtycal data. Specimens ... |
Slovakia | |
| Myšľan P et al. (2022) |
Spain | |
| Calvo Rebollar (2018) |
USA | |
| Houseley (2013) |









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The
Kamloops Lake, Kamloops Mining Division, British Columbia, Canada