This page is currently not sponsored. Click here to sponsor this page.
|Hardness:||3 - 4|
|Name:||In honor of Hatfield Goudey (1906–1985), American economic geologist, mineral collector and dealer in microscopic specimens, San Mateo, California, USA, who contributed to knowledge of the type locality.|
Classification of Goudeyite
|IMA status:||Approved 1978|
|Strunz 8th edition ID:||7/D.53-20|
|Nickel-Strunz 10th (pending) edition ID:||8.DL.15|
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1
|Dana 8th edition ID:||184.108.40.206|
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)7(XO4)3Zq·xH2O
|Hey's CIM Ref.:||20.4.15|
20 : Arsenates (also arsenates with phosphate, but without other anions)
4 : Arsenates of Group III metals (Al, rare earths)
Please feel free to link to this page.
Type Occurrence of Goudeyite
|Type Locality:||Majuba Hill Mine (Mylar Mine), Antelope District, Pershing Co., Nevada, USA|
|Year of Discovery:||1978|
Physical Properties of Goudeyite
|Hardness (Mohs):||3 - 4|
Crystallography of Goudeyite
|Cell Parameters:||a = 13.47Å, c = 5.9Å|
|Ratio:||a:c = 1 : 0.438|
|Unit Cell Volume:||V 927.08 Å³ (Calculated from Unit Cell)|
Optical Data of Goudeyite
|RI values:||nω = 1.704 nε = 1.765|
|Maximum Birefringence:||δ = 0.061|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Chemical Properties of Goudeyite
|Essential elements:||Al, As, Cu, H, O|
|All elements listed in formula:||Al, As, Cu, H, O, Y|
Relationship of Goudeyite to other Species
|Member of:||Mixite Group|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Goudeyite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Goudeyite
Wise, W. S. (1978): Parnauite and goudeyite, two new copper arsenate minerals from the Majuba Hill Mine, Pershing County, Nevada.: American Mineralogist: 63: 704-708.
Internet Links for Goudeyite
Localities for Goudeyite
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
|Fade toolbar when not in focus||Fix toolbar to bottom of page|
|Hide Social Media Links|
|Slideshow frame delay||seconds|