Locality type:

Outcrop

Classification

Species:

Diaspore

Formula:

AlO(OH)

Comments:

Found as retrograde formed along the rims of hercynite grains.

Confirmation

Validity:

Believed Valid

Data

Mineral Data:

Click here to view Diaspore data

Locality Data:

Click here to view Sapphirine locality, Ivesdalsfjellet, Vikeså, Bjerkreim, Rogaland, Norway

Data Identifiers

Mindat Occurrence Record ID:

236127

Long-form Identifier:

1:3:236127:7

GUID (UUID V4):

0c702e87-947c-4e3c-aa0b-5ff8b0d3894f

Nearest other occurrences of Diaspore

97.9km (60.8 miles)

ⓘ Åneland 02 Feldspar Quarry (Smænelia), Åneland, Evje og Hornnes, Agder, Norway

References

Hermans, Gerard A.E.M., Hakstege, Anthonie L., Jansen, J. Ben H., Poorter, René P.E. (1976) Sapphirine occurrence near Vikeså in Rogaland, Southwestern Norway. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 56 (4) 397-412

Reference Search (possible matching items)

	Scrimgeour, I., Raith, J. G. (2002) A sapphirine-phlogopite-cordierite paragenesis in a low-P amphibolite facies terrain, Arunta Inlier, Australia. Mineralogy and Petrology, 75 (1) 123-130 doi:10.1007/s007100200019	Journal (article/letter/editorial)
	Petrology (2002) 75: 123±130 Short Communication A sapphirine±phlogopite±cordierite paragenesis in a low-P...Australia, preserve relatively low-temperature sapphirine-bearing parageneses that developed during low-pressure...metamorphism. Peak metamorphic phlogopite±cordierite±sapphirine assemblages are interpreted to have formed during...cooling of the terrain resulted in the breakdown of sapphirine to corundum±chlorite±phlogopite and corundum±spinel±chlorite...conditions resulted in the replacement of sapphirine by diaspore±chlorite intergrowths. The reaction textures

Diaspore from Sapphirine locality, Ivesdalsfjellet, Vikeså, Bjerkreim, Rogaland, Norway

Diaspore from
Sapphirine locality, Ivesdalsfjellet, Vikeså, Bjerkreim, Rogaland, Norway