Locality type: | Mine |
Classification |
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Species: | Julgoldite-(Fe2+) |
Formula: | Ca2Fe2+Fe23+[Si2O6OH][SiO4](OH)2(OH) |
Comments: | Occurs on inesite. |
Confirmation |
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Validity: | Believed Valid |
Associated Minerals: |
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Associates: | Inesite
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Associated Minerals Based on Photo Data: |
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Inesite | ⓘ1 photo of Julgoldite-(Fe2+) associated with Inesite at this locality. |
Bementite | ⓘ1 photo of Julgoldite-(Fe2+) associated with Bementite at this locality. |
Data |
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Mineral Data: | Click here to view Julgoldite-(Fe2+) data |
Locality Data: | Click here to view Hale Creek Mine, Mad River Rock, Coastal Range, Trinity County, California, USA |
Data Identifiers |
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Mindat Occurrence Record ID: | 139892 |
Long-form Identifier: | 1:3:139892:2 |
GUID (UUID V4): | f34e543d-b029-44b2-8a22-04d5ebf7e834 |
References |
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Reference Search (possible matching items) |
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| | Report (issue) | Julgoldite-(Fe2+ ) Ca2 Fe2+ (Fe3+ ; Al)2 (SiO4 )(Si2 O7 )(OH)2 ² H2 O c 2001 ° Mineral Data Publishing...859 (70), 2.501 (60) Chemistry: SiO2 TiO2 Al2 O3 Fe2 O3 FeO (1) 34.0 0.1 1.3 29.6 8.7 (2) 32.04 0.68...spectroscopy, corresponds to (Ca8:8 Mn0:1 )§=8:9 (Fe2+ 2:7 Fe1:2 3+ Mg0:1 )§=4:0 (Fe7:2 Al0:6 )§=7:8 Si12:7...Auchinstarry quarry, Scotland; by electron microprobe, Fe2+ :Fe3+ by MÄossbauer spectroscopy, H2 O by di®erence;...di®erence; corresponds to Ca8:01 Fe3+ 8:55 ² Al0:30 Fe2+ 3:00 Mg0:13 Si12:03 O48:47 (H2 O)9:18 : Polymorphism | | | Book (volume) | minerals contain series of absorption bands in the range from 1,350 to 1,550 cm1 (Fig. 1.1). A cancrinite-group...largely to empirical approaches. The wavenumber range approximately between 400 and 1,700 cm1 is called... in a pronounced doublet 921 + 954 cm1 in the range of Si–O-stretching vibrations (Fig. 1.5). The splitting...consideration of the whole spectral curve within a certain range of frequencies (Dubovitskiy and Chukanov 2004; Chukanov...where D and M are octahedral cations Mg, Zn, Mn2+, Fe2+, Fe3+ and Al. The transition from monoclinic to |
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