1-20 OF 49 RESULTS FOR

niobium

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
×Close Modal
Sort by
Journal Article
Journal: Lithosphere
Published: 01 March 2018
Lithosphere (2018) 10 (2): 351-363.
FIGURES | View All (11)
Journal Article
Journal: Lithosphere
Published: 05 January 2018
Lithosphere (2018) 10 (1): 109-132.
FIGURES | View All (14)
Journal Article
Published: 01 January 2018
European Journal of Mineralogy (2018) 30 (1): 135-147.
... show small changes in brightness ( e.g. , Fig. 3B ). Niobium-rich ilmenite in Boj-1, Boj-1a and Boj-2n occurs mainly as small (≤20 μm) subhedral–anhedral grains of relatively constant brightness on BSE images ( Fig. 3B ), mostly dispersed within the feldspathic matrix. Most grains are homogeneous...
FIGURES | View All (11)
Journal Article
Journal: Geology
Published: 16 November 2017
Geology (2017) 46 (1): 55-58.
FIGURES
Series: GSA Memoirs
Published: 01 September 2010
DOI: 10.1130/2010.1206(17)
Book Chapter

Author(s)
J. Godfrey Fitton
Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2430(20)
Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2430(21)
Journal Article
Published: 01 January 2001
European Journal of Mineralogy (2001) 13 (1): 159-165.
...Francesco DEMARTIN; Valeria DIELLA; Carlo M. GRAMACCIOLI; Federico PEZZOTTA Abstract The new mineral schiavinatoite (Nb, Ta) BO 4 , the niobium analogue of behierite, has been found in a boronrich pegmatite at Antsongombato, south of Betafo, in the Malagasy Republic, as portions of a greyish-pink...
FIGURES
Journal Article
Published: 01 August 2000
The Canadian Mineralogist (2000) 38 (4): 907-913.
... rutile from the McGuire granitic pegmatite, Park County , Colorado : solid solution, exsolution, and oxidation. Am. Mineral. 84 , 754 – 763 . C?erny , P. & Ercit , T.S. ( 1989 ): Mineralogy of niobium and tantalum: crystal chemical relationships, paragenetic aspects...
FIGURES | View All (6)
Journal Article
Journal: Geology
Published: 01 August 2000
Geology (2000) 28 (8): 683-686.
FIGURES | View All (5)
Journal Article
Journal: Geology
Published: 01 August 2000
Geology (2000) 28 (8): 699-702.
FIGURES
Journal Article
Published: 01 June 2000
Mineralogical Magazine (2000) 64 (3): 377-388.
FIGURES | View All (7)
Journal Article
Published: 01 February 2000
The Canadian Mineralogist (2000) 38 (1): 57-65.
... ): The eruptive center of the late Quaternary Laacher See tephra . Geol. Rundsch . 73 , 933 – 980 . Borodin , L.S. , Bykova , A.B. , Kapitanova , T.A. , & Pyatenko , Yu.A. ( 1960 ): New data on zirconolite and its niobium variety . Dokl. Acad. Sci., Earth Sci. Sect . 134 , 1022...
FIGURES | View All (4)
Journal Article
Journal: Geology
Published: 01 August 1999
Geology (1999) 27 (8): 731-734.
Journal Article
Published: 01 February 1999
Mineralogical Magazine (1999) 63 (1): 85-104.
Journal Article
Journal: Geology
Published: 01 January 1999
Geology (1999) 27 (1): 83-86.
Journal Article
Published: 01 December 1998
Mineralogical Magazine (1998) 62 (6): 837-846.
... concentrating niobium in these rocks. Zirkelite forms platy crystals comprising polysynthetic octahedral twins, often having a complex skeletal internal structure within a cuboctahedral external morphology. The mineral is largely metamict, but after heating to 800 degrees C it produces a cubic crystalline...
Journal Article
Published: 01 April 1998
The Canadian Mineralogist (1998) 36 (2): 525-534.
Journal Article
Published: 01 April 1998
The Canadian Mineralogist (1998) 36 (2): 535-545.
Journal Article
Published: 01 April 1998
The Canadian Mineralogist (1998) 36 (2): 601-608.