Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Okanoganite-(Y) from
Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA


06626670017271925492964.jpg
Okanoganite-(Y), etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
01472030017271925526229.jpg
Okanoganite-(Y), etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
06637880017271925552768.jpg
Okanoganite-(Y), etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
03753300017272019329329.jpg
Okanoganite-(Y)

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
09304420017363205561064.jpg
Okanoganite-(Y), etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
01813710017363205578295.jpg
Okanoganite-(Y), etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
08426660017363205576879.jpg
Okanoganite-(Y), etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
03003190017363205585895.jpg
Okanoganite-(Y)

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
06626670017271925492964.jpg
Okanoganite-(Y), etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
01472030017271925526229.jpg
Okanoganite-(Y), etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
06637880017271925552768.jpg
Okanoganite-(Y), etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
03753300017272019329329.jpg
Okanoganite-(Y)

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
Locality type:Pass
Classification
Species:Okanoganite-(Y)
Formula:(Na,Ca)3(Y,Ce)12Si6B2O27F14
Habit:tetrahedra
Colour:white to reddish orange
Quality for species:Excellent - world class for species or very significant. (!!)
Confirmation
Validity:Valid - Type Locality
Associated Minerals:
Associates:Arfvedsonite
Astrophyllite
Bastnäsite-(Ce)
Chevkinite-(Ce)
Euxenite-(Y)
Fluorite
Polylithionite
Quartz
Zektzerite
Zircon
Associated Minerals Based on Photo Data:
Albite15
Microcline15
Zircon9
Quartz6
Fluorite6
Aegirine2
Arfvedsonite2
Zektzerite2
Astrophyllite1
Chamosite1
Bastnäsite Group1
Synchysite Group1
Opal1
Data
Mineral Data:Click here to view Okanoganite-(Y) data
Locality Data:Click here to view Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA
Photo GalleryView Gallery (37 photos)
Data Identifiers
Mindat Occurrence Record ID:46425
Long-form Identifier:1:3:46425:3
GUID (UUID V4):0
References
p. 1138-1142
Micro Probe Volume VI Number 8
Rocks and Minerals, 66:6, p. 455-456
American Mineralogist (1980), 65:11-12
Boggs, Russell C. (1988) Calciohilairite: CaZrSi3O9·3H2O, the calcium analogue of hilairite from the Golden Horn batholith, northern Cascades, Washington. American Mineralogist, 73 (9-10) 1191-1194
 
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