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The 'IMA database of mineral properties' (rruff.info/ima) has 173 species with 'not an IMA approved mineral' tag, some are an intermediate member of a solid solution series, others are "recently" discredited minerals. [4] I – intermediate member of a solid-solution series. H – hypothetical mineral (synthetic, anthropogenic, etc.)
(1936) Map of the Western Australian goldfields and mineral fields 1936 [cartographic material]/ Mines Department of Western Australia. Scale [ca.1:550 000]. [ca. 1" = 10 miles]. (E 112° -- E 123°/S 020° -- S 036°) Shows state batteries, telegraph lines and stock routes. Battye accession number 002306.
This list includes those recognised minerals beginning with the letters W and X.The International Mineralogical Association is the international group that recognises new minerals and new mineral names; however, minerals discovered before 1959 did not go through the official naming procedure, although some minerals published previously have been either confirmed or discredited since that date.
Washington state is a hotbed for minerals, gemstones, crystals and fossils, making the Evergreen state a popular site for rockhounding. Whether in an official group or going solo, rockhounding is ...
Crystalline copper "feather" from Itauz Mine, Kazakhstan, an example of a photo from the Mindat database. Mindat.org is a non-commercial interactive online database covering minerals around the world. Originally created by Jolyon Ralph as a private project in 1993, it was launched as a community-editable website in October 2000.
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Rockhounding is legal in Washington for certain materials. The material guidelines will depend on where you are: on federal land, land managed by the Department of Natural Resources or private land.
The Chamber of Mines formed a security unit known as "The Bureau", to prevent and investigate gold theft and, from 1907, the chamber financed the WA Police Gold Squad (known later as the Gold Stealing Detection Unit), initially with an annual contribution of £2,000 per annum (more than $275,000 in 2016). [7] [8]