Clark and others 2007 USGS Data Series 231
Spectral Library splib06a Sample Description

(For further information on spectroscopy, see: http://speclab.cr.usgs.gov)

TITLE: Azurite WS316 DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: WS316

MINERAL_TYPE: Carbonate

MINERAL: Azurite

FORMULA: Cu3(CO3)2(OH)2

FORMULA_HTML: Cu₃(CO₃)₂(OH)₂

COLLECTION_LOCALITY: Metcalf Mine, Morenci, Arizona

ORIGINAL_DONOR: Wards Scientific

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Chunks of azurite on a black mineral.

IMAGE_OF_SAMPLE:

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

40 kV - 30 mA, 6.5-9.5 keV
File: azur316.out, *_mdi (smear mount on quartz plate)
References: JCPDS #11-682
Found: Azurite

Comment: Sharp peaks with distinct alpha1-alpha2 separation indicate good crystallinity. Three weak to very weak reflections are not present in the JCPDS listing but are present in Huebner's reference pattern for azurite from Bisbee, AZ.

J.S. Huebner, J. Pickrell, and T. Schaefer, 1994, written communication.

END_XRD_ANALYSIS.

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

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

LIB_SPECTRA_HED:	where	Wave Range	Av_Rs_Pwr	Comment
LIB_SPECTRA:	splib04a r 635	0.2-3.0µm	200	g.s.=
LIB_SPECTRA:	splib05a r 1285	0.2-3.0µm	200	g.s.=
LIB_SPECTRA:	splib06a r 3357			g.s.=