| Abstract: | Iquiqueite (Na4K3Mg(CrO4)B24O39(OH).12H2O, a 11.6369(14), c 30.158(7) A, P31c, Z = 3) occurs as a widespread minor constituent in the nitrate fields of northern Chile. It is particularly abundant in the vicinity of Zapiga, Tarapaca province. Associated minerals include nitratite, halite, nitre, darapskite, blodite, glauberite, dietzeite, bruggenite, ulexite and gypsum. Iquiqueite forms thin, yellow, hexagonal platelets (5-50 mu m in diameter, <5 mu m in thickness) that are disseminated singly or in vermiform aggregates in nitrate ore. Observed forms are c(0001) and m(1010). Cleavage is perfect on (0001) and imperfect on (1010); H. = or <2. D(calc.) 2.05 g/cm3 and measured sp. gr. 2.05 + or - 0.09. The mineral is uniaxial negative, epsilon 1.447(2), omega 1.502(2). The XRD pattern has the six strongest lines 3.02(100), 2.856(100), 10.11(85), 6.04(85), 3.28(85), 3.22(85) A. The name is for the city of Iquique, Chile.-J.A.Z. |
| Genre: | Article |
| ProdID: | 70014608 |
| Citation Author: | Ericksen, G. E.; Mrose, M. E.; Marinenko, J. W.; McGee, J. J. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 836 |
| Citation Issue: | 5-6 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | American Mineralogist |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 7 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Mineralogical studies of the nitrate deposits of Chile. V. Iquiqueite, Na4K3Mg(CrO4)B24O39(OH).12H2O, a new saline mineral.; 1986; Article; Journal; American Mineralogist; Ericksen, G. E.; Mrose, M. E.; Marinenko, J. W.; McGee, J. J. |
| Citation Start Page: | 830 |
| Citation Volume: | 71 |
| Citation Year: | 1986 |
| Type: | citation/reference |
| Text: | Mineralogical studies of the nitrate deposits of Chile. V. Iquiqueite, Na4K3Mg(CrO4)B24O39(OH).12H2O, a new saline mineral.; 1986; Article; Journal; American Mineralogist; Ericksen, G. E.; Mrose, M. E.; Marinenko, J. W.; McGee, J. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1986 00:00 -0600 |
| Publisher: | |
