Yttrialite-(Y) (original) (raw)
A valid IMA mineral species - grandfathered
About Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
Colour:
Olive-green, brown to black; often with an orange-yellow crust
Lustre:
Vitreous, Greasy, Dull
Specific Gravity:
4.56 - 4.58
Crystal System:
Monoclinic
Name:
Named after its chemical composition containing yttrium. Originally named simply yttrialite. The suffix was added in 1987 by the IMA with the adoption of the Levinson for REE minerals.
NOTE: not to be confused with Yttriaite-(Y)
Unique IdentifiersHide
This section is currently hidden. Click the show button to view.
Long-form identifier:
mindat:1:1:4367:6
aa696992-2ce5-4c74-a346-dafaf404c70d
IMA Classification of Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
Approved, 'Grandfathered' (first described prior to 1959)
IMA status notes:
Renamed by the IMA
Type description reference:
Classification of Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
9.BC.05
9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination
55.2.1b.3
55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
2 : Si2O7 Groups, Generally with no Additional Anions with cations in [6] coordination
14.11.5
14 : Silicates not Containing Aluminum
11 : Silicates of Th and Hg
Mineral SymbolsHide
This section is currently hidden. Click the show button to view.
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Ytt-Y | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
Transparency:
Translucent, Opaque
Colour:
Olive-green, brown to black; often with an orange-yellow crust
Cleavage:
Distinct/Good
platy
Density:
4.56 - 4.58 g/cm3 (Measured) 4.0 g/cm3 (Calculated)
Chemistry of Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
Mindat Formula:
(Y,Th)2Si2O7
Chemical AnalysisHide
This section is currently hidden. Click the show button to view.
Crystallography of Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 7.50 Å, b = 8.06 Å, c = 5.02 Å
α = 112.00°
Ratio:
a:b:c = 0.931 : 1 : 0.623
Unit Cell V:
0.00 ų (Calculated from Unit Cell)
Comment:
commonly metamict.
Crystal StructureHide
This section is currently hidden. Click the show button to view.
Load
Unit Cell |Unit Cell Packed
2x2x2 |3x3x3 |4x4x4
Show
Big Balls |Small Balls |Just Balls |Spacefill
Polyhedra Off |Si Polyhedra |All Polyhedra
Remove metal-metal sticks
Display Options
Black Background |White Background
Perspective On |Perspective Off
2D |Stereo |Red-Blue |Red-Cyan
View
CIF File Best |x |y |z |a |b |c
Rotation
Stop |Start
Labels
Console Off |On |Grey |Yellow
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014180 | Yttrialite-(Y) | Batalieva N G, Pyatenko Yu A (1971) Artificial yttrialite (gamma-phase) - a representative of a new structure type in the rare earth diorthosilicate series Kristallografiya 16 905-910 | 1971 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
This section is currently hidden. Click the show button to view.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.68 Å | (80) |
| 4.04 Å | (80) |
| 3.46 Å | (90) |
| 3.19 Å | (50) |
| 3.05 Å | (100) |
| 2.99 Å | (50) |
| 2.63 Å | (90) |
| 2.39 Å | (90) |
| 2.05 Å | (90) |
| 2.02 Å | (50) |
| 2.01 Å | (50) |
| 1.86 Å | (60) |
| 1.74 Å | (60) |
Comments:
Ivedal, Norway. The data are from Nilssen (1971). The sample was heated at 850°C. That reference provides a thorough summary of different natural and synthetic patterns obtained at different temperatures.
Geological EnvironmentHide
This section is currently hidden. Click the show button to view.
Type Occurrence of Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
General Appearance of Type Material:
Place of Conservation of Type Material:
No designated type specimen.
Geological Setting of Type Material:
Polymetallic deposit hosted in pegmatitic granite.
Associated Minerals at Type Locality:
Reference:
Hidden, W.E., Mackintosh, J.B. (1889) A description of several yttria and thoria minerals from Llano County, Texas. American Journal of Science, 138, 474-486.
Other Language Names for Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
Relationship of Yttrialite-(Y) to other SpeciesHide
This section is currently hidden. Click the show button to view.
Other Members of this group:
Common AssociatesHide
This section is currently hidden. Click the show button to view.
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
This section is currently hidden. Click the show button to view.
Other InformationHide
This section is currently hidden. Click the show button to view.
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 Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
References for Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
Reference List:
Localities for Yttrialite-(Y)Hide
This section is currently hidden. Click the show button to view.
This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
This section is currently hidden. Click the show button to view.
- 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.