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Arfvedsonite (/ˈɑːrvɛdsənaɪt/) or soda
hornblende (partiellement obsolète) is a
sodium amphibole mineral with composition: [Na][Na2][(Fe2+)4Fe3+][(OH)2|Si8O22]...
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shares few
compositional similarities with
alkali amphiboles such as
arfvedsonite, glaucophane-riebeckite.
There is
little solubility between these minerals...
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another solid solution series,
which also
extends towards hornblende and
arfvedsonite.
There is not a
continuous series between calcic clinoamphiboles, such...
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igneous rock perthite. The
black spots are
composed of the rare
amphibole arfvedsonite (and not, as
often claimed, of tourmaline).
Polished pebble. "Jasper:...
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occurs in ****ociation with pot****ic feldspar, nepheline, riebeckite,
arfvedsonite, aenigmatite, astrophyllite, catapleiite, eudialyte,
serandite and apophyllite...
- asbestos). It
occurs in ****ociation with aegirine, nepheline, albite,
arfvedsonite in
igneous rocks; with tremolite, ferro-actinolite in
metamorphic rocks;...
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Annabergite Anorthite Antigorite Bowenite Apatite Apophyllite Aragonite Arfvedsonite Asbestos Astrophyllite Atacamite Augelite Austinite Axinite group: Ferroaxinite...
- quartz. The blue
colour is
caused by very
small crystals of
riebeckite or
arfvedsonite. The 1903
eruption of
Changbaishan volcano in
northeast China erupted...
- Pot****ic-magnesio-fluoro-
arfvedsonite is an
amphibole mineral first discovered in Quebec, Canada, in an area
which is part of the
Canadian Shield which...
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below Silver Star
mountain in
miarolitic cavities within the
alkaline arfvedsonite granite phase of the
Golden Horn batholith,
Okanogan County, Washington...
