Information on Standards and Reference Materials (S-RM)

Kakanui Hornblende (silicate) - ID NMNH 143965

First entry: 01/02/16 || Last update: 28/07/21 || Status: accepted

General information
Mineral class Sub-class Group Species	Silicate Inosilicate double chains Amphibole Hornblende
Synthetic?	no
Formula Standard element(s)	Ca2(Fe,Mg)4(Al,Fe)Si7AlO22(OH)2 Si Al Fe Mg Ca
Origin, rock type...	Kakanui, New Zealand

No images found...

(*) Recommended analysis.

Analysis 1
Reference	E. Jarosewich
Analysis type	unknown

Wt-% oxide		Wt-% element		Atom: N/A
40.3700 4.7200 14.9000 3.3000 7.9500 0.0900 12.8000 10.3000 2.6000 2.0500 0.9400	SiO2 TiO2 Al2O3 Fe2O3 FeO MnO MgO CaO Na2O K2O H2O	18.8706 2.8289 7.8859 2.3081 6.1796 0.0697 7.7189 7.3614 1.9288 1.7018 0.1052 43.0610	Si Ti Al Fe3+ Fe Mn Mg Ca Na K H O
100.020		100.020

Abundant impurities: FeTi oxide (complex melt [?] inclusions with tiny oxide crystals); Rare impurities: Fe-Ti oxide (larger individual crystals).

Jarosewich, E. (1972) Chemical analysis of five minerals for microprobe standards. Smithsonian Contributions to the Earth Sciences 9, 83-84
Jarosewich, E., et. al. (1979) Microprobe Analyses of Four Natural Glasses and One Mineral: An Interlaboratory Study of Precision and Accuracy. Smith Contr. Ear. Sci. 22, p. 53- 67
Jarosewich, E., Nelen, J. A., and Norberg, J. A. (1980) Reference Samples for Electron Microprobe Analysis. Geostandards Newsletter 4, p. 43-47
Jarosewich, E., Nelen, J. A., and Norberg, J. A. (1980) Corrections. Geostandards Newsletter 4, p. 257-258
Mason, B. (1966) Pyrope, augite and hornblende from Kakanui, New Zealand. J. Geol. Geophys. 9 (4), p. 474- 480

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https://mineralsciences.si.edu/facilities/standards.htm
Material: mineral (size: 0.590 mm - 0.420 mm, > 0.420 mm, or various smaller size range)
https://naturalhistory.si.edu/research/mineral-sciences/collections-overview/reference-materials/smithsonian-microbeam-standards