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Cesbron, F. P., Williams, S. A. (1980) Apachite and gilalite, two new copper silicates from Christmas, Arizona. Mineralogical Magazine, 43 (329) 639-641 doi:10.1180/minmag.1980.043.329.12

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Reference TypeJournal (article/letter/editorial)
TitleApachite and gilalite, two new copper silicates from Christmas, Arizona
JournalMineralogical MagazineISSN0026-461X
AuthorsCesbron, F. P.Author
Williams, S. A.Author
Year1980 (March)Volume43
Issue329
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_43/43-329-639.pdf+
DOIdoi:10.1180/minmag.1980.043.329.12Search in ResearchGate
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Mindat Ref. ID3106Long-form Identifiermindat:1:5:3106:0
GUID0
Full ReferenceCesbron, F. P., Williams, S. A. (1980) Apachite and gilalite, two new copper silicates from Christmas, Arizona. Mineralogical Magazine, 43 (329) 639-641 doi:10.1180/minmag.1980.043.329.12
Plain TextCesbron, F. P., Williams, S. A. (1980) Apachite and gilalite, two new copper silicates from Christmas, Arizona. Mineralogical Magazine, 43 (329) 639-641 doi:10.1180/minmag.1980.043.329.12
In(1980, March) Mineralogical Magazine Vol. 43 (329) Mineralogical Society
Abstract/NotesSummaryBoth new species are retrograde or mesogene minerals that occur in tactites at the Christmas mine, Gila County, Arizona (USA). Gilalite is green, H = 2, D = 2.82. Biaxial (—), 2V small, α = 1.560, β = γ = 1.635. No single crystals found; strongest lines at 13.49 Å, (10); 10.97 (5); 7.786 (5). Analysis gave CuO 36.2%, MgO 2.3, CaO 3.8, MnO 0.5, SiO2 41.5, H2O 14.6, close to Cu5Si6O17·7H2O.Apachite is blue, H = 2, D = 2.80. Biaxial (—), 2V small, α = 1.610, β = γ = 1.650. No single crystals found. Strongest lines are 12.90 Å (10); 3.168 (7); 7.663 (5). Analysis gave CuO 43.6%, FeO 0.3, MgO 1.7, CaO 1.8, SiO2 40.8, H2O 13.8, close to Cu9Si10O29·11H2O.

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LocalityCitation Details
Christmas Mine, Christmas, Banner Mining District, Gila County, Arizona, USA

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MineralCitation Details
Apachite
Gilalite

Mineral Occurrences

LocalityMineral(s)
Christmas Mine, Christmas, Banner Mining District, Gila County, Arizona, USA Apachite, Gilalite, Tobermorite, Xonotlite


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