Ferrierite-NH4
A valid IMA mineral species
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About Ferrierite-NH4
Walter F. Ferrier
Formula:
(NH4,Mg0.5)5(Al5Si31O72) · 22H2O
Colour:
White
Lustre:
Silky
Specific Gravity:
2.154 (Calculated)
Crystal System:
Orthorhombic
Member of:
Name:
Ammonium dominant member of ferrierite group.
Name Encoding
Formatted:
ferrierite-NH4
HTML:
ferrierite-NH<sub>4</sub>
LaTeX:
ferrierite-NH\$\_4\$
Unique Identifiers
Mindat ID:
52850
Long-form identifier:
mindat:1:1:52850:2
Similar Names
| Ferrierite-Na | A valid IMA mineral species | (Na,K)5(Si31Al5)O72 · 18H2O |
IMA Classification of Ferrierite-NH4
Approved
Approval year:
2018
First published:
2019
Type description reference:
Classification of Ferrierite-NH4
9.GD.50
9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
D : Chains of 6-membered rings – tabular zeolites
9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
D : Chains of 6-membered rings – tabular 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 |
|---|---|---|
| Frr-NH4 | 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-NH4
Silky
Transparency:
Transparent
Colour:
White
Streak:
White
Cleavage:
None Observed
Density:
2.154 g/cm3 (Calculated)
Optical Data of Ferrierite-NH4
Type:
Biaxial (+)
RI values:
nα = 1.518(2) nβ = 1.520(2) nγ = 1.522(2)
Max. Birefringence:
δ = 0.004
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
Optical Extinction:
Z = c.
Pleochroism:
Non-pleochroic
Chemistry of Ferrierite-NH4
Mindat Formula:
(NH4,Mg0.5)5(Al5Si31O72) · 22H2O
Element Weights:
Crystallography of Ferrierite-NH4
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Immm
Setting:
Immm
Cell Parameters:
a = 19.10(1) Å, b = 14.15(1) Å, c = 7.489(3) Å
Ratio:
a:b:c = 1.35 : 1 : 0.529
Unit Cell V:
2,024.01 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Very thin flattened prismatic crystals elongated along (001).
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.52 Å | (97) |
| 6.95 Å | (28) |
| 6.60 Å | (19) |
| 3.988 Å | (61) |
| 3.784 Å | (19) |
| 3.547 Å | (73) |
| 3.482 Å | (100) |
| 3.143 Å | (37) |
Reference:
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
| 49 : Oxic cellular biomineralization (see also #44) | <0.54 |
| 50 : Coal and/or oil shale minerals | <0.36 |
| 53 : Other minerals with taphonomic origins | <0.4 |
Type Occurrence of Ferrierite-NH4
General Appearance of Type Material:
Radiating aggregates up to 2 mm across consisting of thin flattened prismatic crystals.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration number 5120/1.
Geological Setting of Type Material:
Coal deposit.
Associated Minerals at Type Locality:
Synonyms of Ferrierite-NH4
Other Language Names for Ferrierite-NH4
Dutch:Ferrieriet-NH4
German:Ferrierit-NH4
Relationship of Ferrierite-NH4 to other Species
Member of:
Other Members of Ferrierite Subgroup:
| Ferrierite-K | (K,Na)5(Si31Al5)O72 · 18H2O | Orth. mmm(2/m2/m2/m) : Immm |
| Ferrierite-Mg | [Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O | Orth. mmm(2/m2/m2/m) : Pnnm |
| Ferrierite-Na | (Na,K)5(Si31Al5)O72 · 18H2O | Mon. 2/m |
Common Associates
Associations Based on Photo Data:
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-Mg | [Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O |
| 9.GD.50 | Ferrierite-Na | (Na,K)5(Si31Al5)O72 · 18H2O |
| 9.GD.55 | Bikitaite | LiAlSi2O6 · H2O |
Fluorescence of Ferrierite-NH4
Intense bluish white fluorescence under both short- (254 nm) and long-wave (366 nm) UV.
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 Ferrierite-NH4
mindat.org URL:
https://www.mindat.org/min-52850.html
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References for Ferrierite-NH4
Localities for Ferrierite-NH4
Showing 4 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.
Czech Republic (TL) | |
| Hålenius et al. (2018) +1 other reference |
| Gramblička (n.d.) +1 other reference |
| Erik Vercammen collection (bought from J Hyrsl) | |
Slovakia | |
| Martin Števko-unpublished |
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Jenišův Újezd, Bílina coal mine, Bílina, Teplice District, Ústí nad Labem Region, Czech Republic