TITLE: Jarosite NMNH95074-1 (Na) DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: NMNH95074-1

MINERAL_TYPE: Sulfate

MINERAL: Jarosite (Natrojarosite) (Alunite group)

FORMULA: Na(Fe+3)3(SO4)2(OH)6

FORMULA_HTML: NaFe+33(SO4)2(OH)6

COLLECTION_LOCALITY: Warner Mine, Hot Springs, Mineral County, Nevada

ORIGINAL_DONOR: National Museum of Natural History

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Fe+3 analogue of alunite. Secondary mineral found as crusts and coatings on ferruginous ores.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Natrojarosite (NaFe3(SO4)2(OH)6) + quartz (m).
Spectrally pure. (Norma Vergo)

END_XRD_ANALYSIS.

COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EM(WDS), ICP(Trace), WChem

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

None

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

Not done yet

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1_2_3_4_

LIB_SPECTRA_HED: where Wave Range Av_Rs_Pwr Comment

LIB_SPECTRA: splib04a r 2487 0.2-3.0µm 200 g.s.=

LIB_SPECTRA: splib05a r ____ 0.2-3.0µm 200 g.s.=

LIB_SPECTRA: splib06a r ____ 1.5-25µm 250 g.s.=