Potential iron ore mine, but mining has not gained approval. It has been torpedoed by various issues raised if mining goes ahead, including distance to port, destruction of rare flora hosted by the banded iron formations, destruction of aboriginal heritage sites, and native title disputes.
The Weld Range is 3-5 kilometres wide by 40 kilometres long.
A general study of the banded iron formations of Weld Range in 1980 states the range is composed of metabasites and minor metasediments with 5-10% banded iron formations. There are two units of the latter being Fe rich units of banded iron formations with mesobands, and Fe shale as laminated 2-30cm thick bands.
In the mesobands the order of abundance of species is minnesotaite, siderite, quartz, magnetite, greenalite, stilpnomelane, pyrite, chamosite with trace pyrrhotite, arsenopyrite, chalcopyrite, and apatite but all widely distributed. Rockbridgeite was rare. The assemblage is variable between the bands.
In the Fe rich shale the order of abundance was chamosite, stilpnomelane, siderite, greenalite, pyrite, magnetite, minnesotaite, quartz with minor ilmenite, chalcopyrite and apatite. Hematite occurs due to weathering.
The greenalite occurs as Al rich with moderate Mg content, or Al/Mg low greenalite. It occurs as greenalite-siderite-quartz-pyrite or greenalite-siderite or greenalite-quartz assemblages. The greenalite is often overprinted by stilpnomelane, minnesotaite or both. The Al poor greenalite is often the dominant component of the mesobands showing a slightly brown colouring with dark diffuse or sharp patches of more greenalite.
Mineral ListMineral list contains entries from the region specified including sub-localities
35 entries listed. 26 valid minerals.
Localities in this Region
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Gole, M.J.(1980): Mineralogy and Petrology of Very Low Metamorphic Grade Archaean Banded Iron Formations Weld Range Western Australia, American Mineralogist (Jan-Feb 1980): 65: 8-25
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