Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Magnetite from
Study Butte meteorite, Study Butte, Brewster County, Texas, USA


Locality type:Meteorite Fall Location
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Comments:Magnetite as single, often euhedral grains in matrix and as components of complex intergrowths. Caveat — magnetite has been partly replaced in some regions by terrestrial weathering.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Study Butte meteorite, Study Butte, Brewster County, Texas, USA
Data Identifiers
Mindat Occurrence Record ID:1067667
Long-form Identifier:1:3:1067667:1
GUID (UUID V4):0
Nearest other occurrences of Magnetite
7.6km (4.7 miles) ⓘRattlesnake Mountains, Big Bend National Park, Brewster County, Texas, USA
49.3km (30.6 miles) ⓘApex mine, San Carlos, Manuel Benavides Municipality, Chihuahua, Mexico
64.5km (40.1 miles) ⓘBlack Mountain, Brewster County, Texas, USA
References
Wlotzka, F. & Fredriksson, K. (1988) Magnetite-Carbide and Al-Rich Inclusions in the Study Butte H3-Chondrite: Meteoritics 23(4): 311-312. (Dec 1988).
Fredriksson K., Jarosewich E., and Wlotzka F. (1989) Study Butte: A chaotic chondrite breccia with normal H-group chemistry. Z. Naturforsch. 44a: 945-962.
Krot, A.N., Zolensky, M.E., Wasson, J.T. & Scott, E.R.D., Keil, K. & Ohsumi, K. (1997) Carbide-Magnetite assemblages in type-3 ordinary chondrites: Geochimica et Cosmochimica Acta 61(1): 219-237. (Jan 1997).
 
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