Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Evelyn mine (Lady Evelyn), Croydon Station, Whim Creek, Roebourne Shire, Western Australia, Australia

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84): 21° 5' 39'' South , 117° 50' 52'' East
Latitude & Longitude (decimal): -21.09425,117.84796
GeoHash:G#: qs5zcxym0
Locality type:Mine
Köppen climate type:BWh : Hot deserts climate


ML 31. Copper mine. 5 kilometres east of the Croydon homestead.

The lode strikes north-east. Very early 20th Century a great deal of rooting around at the site was conducted by the British Exploration Australasian Company. The main shaft was down to 100 feet, but when visited 1908 was full of water to 45 feet of the surface.

The deposit is a shoot of copper ore, 40 feet long, oxidised in the upper levels, in clayey material, but with plenty large bunches of copper oxides, carbonates, silicates and sulphides. A 50 tonne parcel came in at 21% copper.

The deposit also has significant zinc, which led to problems processing the ore in its early days. Zincite was in the oxidised zone, and sphalerite below the water table. The deposit is 14% zinc. Below the water table was also noted pyrite and marcasite.

A study was done of the site in 1908 by the government mineralogist, who determined chrysocolla, malachite, cuprite, a brick red type of cuprite called tile ore, much chalcocite, chalcopyrite, sphalerite, smithsonite, quartz, limonite, and large crusts and veins of calcite.

Eight shafts were on the lease, but only one was payable. Mining appears to have been limited and abandoned permanently afterwards.


Mineral List


13 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoarchean
2500 - 2800 Ma



ID: 3186002
Archean intrusive rocks

Age: Neoarchean (2500 - 2800 Ma)

Comments: Pilbara Craton

Lithology: Intrusive igneous rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Archean
2500 - 4000 Ma



ID: 829261
metamorphosed mafic rocks 74327

Age: Archean (2500 - 4000 Ma)

Description: Metamorphosed mafic rocks; metabasalt, metagabbro, metadolerite, amphibolite, mafic schist; minor metamorphosed ultramafic rocks and metasedimentary rocks; amphibolite schist; quartz-sericite schist, volcaniclastic rocks, local granitic dykes and veins

Comments: meta-igneous mafic; meta-igneous ultramafic; synthesis of multiple published descriptions

Lithology: Meta-igneous mafic; meta-igneous ultramafic

Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). [5]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page 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.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Maitland, A. Gibb, 1908 The Geological Features and Mineral Resources of the Pilbara Goldfield. Reprint of Bulletins 15, 20 & 23. Perth: Western Australia Geological Survey.

Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: June 20, 2019 16:30:21 Page generated: June 5, 2018 13:43:54
Go to top of page