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Osumilite from
Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA


00453860017272015241232.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
05494880017272015254529.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
09059780017272015269778.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
07289510017272041588912.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
09089980017368444354311.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
01906400017368444364751.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
05281180017368444364736.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
01056730017368444379348.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
00453860017272015241232.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
06239810017272015285564.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
09059780017272015269778.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
07289510017272041588912.jpg
Osumilite

Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
Locality type:Cliff
Classification
Species:Osumilite
Formula:K◻2Fe22+Al3[Al2Si10O30]
Confirmation
Validity:Confirmed
Confirmation Methods:EPMA
Associated Minerals Based on Photo Data:
Tridymite5
Phlogopite5
Fayalite1
Laihunite1
Hematite1
Data
Mineral Data:Click here to view Osumilite data
Locality Data:Click here to view Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
Photo GalleryView Gallery (45 photos)
Data Identifiers
Mindat Occurrence Record ID:100461
Long-form Identifier:1:3:100461:8
GUID (UUID V4):0
References
Olsen, Edward, Bunch, T. E. (1970) Compositions of natural osumilites. American Mineralogist, 55 (5-6) 875-879
Martin, A.M.,Médard, M.,Devouard, B., Keller, L. P., Righter, K., Devidal, J-L., and Rahman, Z. (2015): Fayalite oxidation processes in Obsidian Cliffs rhyolite flow, Oregon. American Mineralogist: 100: 1153–1164.
 
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