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Collection: (SW) Stillwater Complex -- Montana
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Title
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Date Added
Mafic crystals
Very coarse
Bronzitite
Contains large augite crystals
Gabbro
Leucocratic, orthorhombic pryoxenes abundant
Norite
Leucocratic
Norite
Especially dark (not typical)
Anorthosites
Many have large dark mineral clusters
Troctolite
Troctolite
No associated sulfides
Anorthosite
Fine-banded, most of the bands are several inches wide and alternate light-dark
Sulfides in troctolite
Norite
Anorthosite w/ pyroxene oichocrysts
Bronzite w/ olivine oichocrysts
Bronzite
Olivine cumulate layer
Chromite and olivine
From olivine layer of a typical chromite repeat sequence
Quartz monzonite pluton
Sample is not representative of whole body -- there are coarser and finer samples
Hornfels w/ massive sulfides
Cordierite hornfels
SW Suite PDF
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