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Peatite-(Y)
A valid IMA mineral species
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About Peatite-(Y)
Cynthia Peat
Formula:
Li4Na12Y12(PO4)12(CO3)4(F,OH)8
Colour:
Pale pink
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
3.62 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of Mrs. Cynthia Peat (1925, Henley-on-Thames, England - 22 August 1999, Toronto, Ontario, Canada), a former X-ray technician in the Department of Mineralogy at the Royal Ontario Museum, Canada.
Unique Identifiers
Mindat ID:
39554
Long-form identifier:
mindat:1:1:39554:2
Similar Names
| Keatite | Valid as an unnamed mineral | SiO2 |
IMA Classification of Peatite-(Y)
Approved
IMA Formula:
Li4Na12(Y,Na,Ca,REE)12(PO4)12(CO3)4(F,OH)8
Approval year:
2009
First published:
2013
Type description reference:
Classification of Peatite-(Y)
5.BF.45
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
F : With (Cl), SO4, PO4, TeO3
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
F : With (Cl), SO4, PO4, TeO3
43.4.14.
43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Pti-Y | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Peatite-(Y)
Vitreous
Colour:
Pale pink
Streak:
White
Hardness:
3 on Mohs scale
Comment:
approximately
Tenacity:
Brittle
Cleavage:
Very Good
on {100}, {010}, and {001}
on {100}, {010}, and {001}
Density:
3.62(1) g/cm3 (Calculated)
Chemistry of Peatite-(Y)
Mindat Formula:
Li4Na12Y12(PO4)12(CO3)4(F,OH)8
Element Weights:
Crystallography of Peatite-(Y)
Crystal System:
Orthorhombic
Class (H-M):
222 - Disphenoidal
Space Group:
P222
Setting:
P222
Cell Parameters:
a = 11.167(2) Å, b = 11.164(2) Å, c = 11.162(1) Å
Ratio:
a:b:c = 1 : 1 : 1
Unit Cell V:
1,391.55 Ã
Âģ (Calculated from Unit Cell)
Morphology:
Pinacoid {100}, {010}, and {001} and the minor forms rhombic prism {110}, {101}, and {011}.
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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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) |
|---|---|---|---|---|---|---|---|
| 0020055 | Peatite-(Y) | McDonald A M, Back M E, Gault R A, Horvath L (2013) Peatite-(Y) and ramikite-(Y), two new Na-Li-Y?Zr phosphate-carbonate minerals from the Poudrette pegmatite, Mont Saint-Hilaire, Quebec The Canadian Mineralogist 51 569-596 | 2013 | Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada | 0 | 293 |
CIF Raw Data - click here to close
Epitaxial Relationships of Peatite-(Y)
Epitaxial Minerals:
| 'Ramikite-(Y)' | Li4(Na,Ca)12Y6Zr6(PO4)12(CO3)4O4[(OH),F]4 |
Epitaxy Comments:
As crystals (pseudocubes) with yellowish-white cores of ramikite-(Y) and thin (< 50 um) pale pink rims of peatite-(Y).
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.56 Ã | (57) |
| 3.95 Ã | (57) |
| 3.54 Ã | (46) |
| 3.23 Ã | (37) |
| 3.23 Ã | (83) |
| 2.71 Ã | (38) |
| 2.63 Ã | (100) |
| 2.149 Ã | (42) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 22 : Hydration and low-? subsurface aqueous alteration (see also #23) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Peatite-(Y)
General Appearance of Type Material:
Epitactic-like, euhedral crystals (pseudocubes) of peatite-(Y) and ramikite-(Y) range from 0.1 to 1 mm in size (average: 0.2 mm). Core = ramikite-(Y) and peatite-(Y) as thin (< 50 Âĩm) pale pink rims.
Place of Conservation of Type Material:
The Royal Ontario Museum, Toronto, Ontario, Canada (M53894).
Geological Setting of Type Material:
Late-stage product in the core of the Poudrette Pegmatite.
Associated Minerals at Type Locality:
Synonyms of Peatite-(Y)
Other Language Names for Peatite-(Y)
Dutch:Peatiet-(Y)
German:Peatit-(Y)
Common Associates
Associations Based on Photo Data:
| 22 photos of Peatite-(Y) associated with Ramikite-(Y) | Li4(Na,Ca)12Y6Zr6(PO4)12(CO3)4O4[(OH),F]4 |
| 7 photos of Peatite-(Y) associated with Albite | Na(AlSi3O8) |
| 6 photos of Peatite-(Y) associated with Analcime | Na(AlSi2O6) · H2O |
| 4 photos of Peatite-(Y) associated with Sabinaite | Na4Zr2TiO4(CO3)4 |
| 3 photos of Peatite-(Y) associated with Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| 3 photos of Peatite-(Y) associated with Gobbinsite | Na5(Si11Al5)O32 · 11H2O |
| 2 photos of Peatite-(Y) associated with Rhodochrosite | MnCO3 |
| 1 photo of Peatite-(Y) associated with Siderite | FeCO3 |
Related Minerals - Strunz-mindat Grouping
| 5.BF.05 | Northupite | Na3Mg(CO3)2Cl |
| 5.BF.05 | Manganotychite | Na6Mn2(CO3)4(SO4) |
| 5.BF.05 | Tychite | Na6Mg2(CO3)4(SO4) |
| 5.BF.05 | Ferrotychite | Na6(Fe,Mn,Mg)2(CO3)4(SO4) |
| 5.BF.10 | Sidorenkite | Na3Mn2+(CO3)(PO4) |
| 5.BF.10 | Crawfordite | Na3Sr(CO3)(PO4) |
| 5.BF.10 | Bonshtedtite | Na3Fe2+(CO3)(PO4) |
| 5.BF.10 | Bradleyite | Na3Mg(CO3)(PO4) |
| 5.BF.15 | Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| 5.BF.20 | Reederite-(Y) | (Na,Mn)15Y2(CO3)9(FSO3)Cl |
| 5.BF.25 | Mineevite-(Y) | Na25Ba(Y,Gd,Dy)2(CO3)11(HCO3)4(SO4)2F2Cl |
| 5.BF.30 | Brianyoungite | Zn3(CO3,SO4)(OH)4 |
| 5.BF.35 | Philolithite | Pb12Mn2+(Mg,Mn2+)2(Mn2+,Mg)4(CO3)4(SO4)O6(OH)12Cl4 |
| 5.BF.40 | Leadhillite | Pb4(CO3)2(SO4)(OH)2 |
| 5.BF.40 | Macphersonite | Pb4(CO3)2(SO4)(OH)2 |
| 5.BF.40 | Susannite | Pb4(CO3)2(SO4)(OH)2 |
| 5.BF.50 | Ramikite-(Y) | Li4(Na,Ca)12Y6Zr6(PO4)12(CO3)4O4[(OH),F]4 |
Fluorescence of Peatite-(Y)
Shows no discernible fluorescence under long-, medium-, or short-wave ultraviolet radiation.
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 Peatite-(Y)
mindat.org URL:
https://www.mindat.org/min-39554.html
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References for Peatite-(Y)
Reference List:
Localities for Peatite-(Y)
Showing 2 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
Canada (TL) | |
| McDonald et al. (2013) |
Spain | |
| Dill et al. (2023) |
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Poudrette quarry, Mont Saint-Hilaire, La VallÃĐe-du-Richelieu RCM, MontÃĐrÃĐgie, QuÃĐbec, Canada