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olenite

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Journal Article
Published: 01 October 2012
American Mineralogist (2012) 97 (10): 1591–1597.
...Andreas Ertl; Gerald Giester; Thomas Ludwig; Hans-Peter Meyer; George R. Rossman Abstract Synthetic Al- and B-rich tourmaline crystals described by London (2011) were characterized further by SIMS and new EMP analyses. These tourmalines are the first synthetic B-rich olenites characterized...
FIGURES | View All (4)
Journal Article
Published: 01 August 2007
The Canadian Mineralogist (2007) 45 (4): 891–899.
.... Near the pyramidal faces, the composition of these tourmaline crystallites is relatively Al-rich (up to 43.6 wt% Al 2 O 3 ), and Mn-poor (0.1–0.3% MnO). A crystal-structure refinement of the Li-bearing olenite (near the pyramidal faces), in combination with analytical results, gives the optimized...
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Journal Article
Published: 01 February 2006
The Canadian Mineralogist (2006) 44 (1): 23–30.
...Jan Cempírek; Milan Novák; Andreas Ertl; John M. Hughes; George R. Rossman; M. Darby Dyar Abstract The pale blue rim of olenite on a black crystal of olenite–schorl tourmaline from an abyssal pegmatite at the locality Kuklík, near Kutná Hora, Czech Republic, has been chemically and structurally...
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Journal Article
Published: 01 August 2004
The Canadian Mineralogist (2004) 42 (4): 1057–1063.
...Andreas Ertl; Franz Pertlik; M. Darby Dyar; Stefan Prowatke; John M. Hughes; Thomas Ludwig; Heinz-Jürgen Bernhardt Abstract A sample of dark green Fe-rich (~7 wt% FeO total ) and Mn-bearing olenite from a beryl-bearing granitic pegmatite near Eibenstein, Lower Austria, was chemically...
FIGURES
Journal Article
Published: 01 February 2004
American Mineralogist (2004) 89 (2-3): 447–454.
... amounts of substitution of B for Si, five samples were separated from a core-to-rim (~3 mm) section of an Fe-bearing olenite with a dark green core and a nearly colorless rim from Koralpe, Austria. Crystal structures of the five samples were refined to R values <0.018 using three-dimensional X-ray...
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Journal Article
Published: 01 December 2003
The Canadian Mineralogist (2003) 41 (6): 1363–1370.
... of tourmaline, and the O1 site is occupied by ~[O 0.9 (OH) 0.1 ]. Such samples of magnesian olenite provide a very good example of disorder driven by the short-range requirements of O 2− at the O1 site that is associated with the ~2Al + Mg configuration at the coordinating Y sites. To date, these tourmaline...
FIGURES
Journal Article
Published: 01 September 2002
European Journal of Mineralogy (2002) 14 (5): 935–942.
...Werner SCHREYER; John M. HUGHES; Heinz-Jürgen BERNHARDT; Angelika KALT; Stefan PROWATKE; Andreas ERTL Abstract Recent discoveries have demonstrated that some synthetic and natural olenite tourmalines contain less than the putative Si 6.00 p.f.u. , with the deficiencies in the tetrahedral sites...
FIGURES
Journal Article
Published: 01 July 2002
European Journal of Mineralogy (2002) 14 (4): 763–771.
...Bernd MARLER; Markus BOROWSKI; Ulrich WODARA; Werner SCHREYER Abstract Two excess-boron olenite samples which had been synthesized from a reaction mixture of 0.625 Na 2 O · 4.5 Al 2 O 3 · 6.0 SiO 2 · 3.0 B 2 O 3 + excess H 2 O at 600°C / 25 kbar (sample 1) and 650°C / 20 kbar (sample 2) were...
FIGURES
Journal Article
Published: 01 February 2002
American Mineralogist (2002) 87 (2-3): 364–367.
...Bernd Marler; Andreas Ertl Abstract Significant amounts of boron in both trigonal and tetrahedral coordination have been found through 11 B magic-angle-spinning (MAS) nuclear magnetic resonance (NMR) spectroscopy of natural olenite (aluminum-rich tourmaline) from Stoffhütte, Koralpe, Styria...
FIGURES
Journal Article
Published: 01 November 2001
European Journal of Mineralogy (2001) 13 (6): 1191–1205.
... ](BO 3 ) 3 V 3 W) has been found, namely between magnesian schorl and lithian excess-boron olenite. At the pegmatite contact with mylonitic garnet-biotite schists, a tourmalinite band developed. Massive tourmaline cores are Mg-rich schorl with normal boron contents of 3.0 cations per formula unit...
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Journal Article
Published: 01 August 2000
The Canadian Mineralogist (2000) 38 (4): 861–868.
...John M. Hughes; Andreas Ertl; M. Darby Dyar; Edward S. Grew; Charles K. Shearer; Martin G. Yates; Charles V. Guidotti Abstract The substitution of [4] B for [4] Si in tourmaline has been the source of much discussion. A sample of olenite from Stoffhütte, Koralpe, Styria, Austria has been found...
Journal Article
Published: 01 May 2000
European Journal of Mineralogy (2000) 12 (3): 529–541.
...Werner SCHREYER; Ulrich WODARA; Bernd MARLER; Peter A. van AKEN; Friedrich SEIFERT; Jean-Louis ROBERT Abstract One selected composition within the system Na 2 O-Al 2 O 3 -B 2 O 3 -SiO 2 -H 2 O (NABSH) was studied with the aim of synthesizing the new tourmaline end member olenite...
FIGURES | View All (6)
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Representative examples of synthetic <span class="search-highlight">olenites</span> from the 216 h experiment use...
Published: 01 December 2017
Figure 2. Representative examples of synthetic olenites from the 216 h experiment used for in situ B-isotope analysis by SIMS. BSE images were acquired after SIMS analysis. ( a ) Columnar olenite with jeremejevite and coesite inclusions. ( b ) Inclusion-free columnar olenite. ( c ) Acicular
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Summary of analytical results on <span class="search-highlight">olenite</span> synthesis product obtained at 25 k...
Published: 01 May 2000
Table 3. Summary of analytical results on olenite synthesis product obtained at 25 kbar, 600°C (n = 60 for Na, Al, Si) compared to idealized olenite.
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X-ray powder diffraction data of synthetic <span class="search-highlight">olenite</span> prepared at 25 kbar, 700...
Published: 01 May 2000
Table 2. X-ray powder diffraction data of synthetic olenite prepared at 25 kbar, 700°C, compared to values of d calc for natural olenite ( Sokolov et al. , 1986 ) and of d obs for natural dravite (JCPDS 14-76).
Journal Article
Published: 01 May 2017
European Journal of Mineralogy (2017) 29 (2): 239–255.
... explanation. Using the example of olenitic tourmaline, we show that these features are likely explained by the occurrence of a precursor phase during tourmaline formation. Time-dependent piston–cylinder synthesis experiments were performed in the system SiO 2 –Al 2 O 3 –B 2 O 3 –NaCl–H 2 O at 700 °C/40 kbar...
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Plot of tourmaline cell dimensions  c  versus  a  for the common end member...
Published: 01 May 2000
Fig. 3. Plot of tourmaline cell dimensions c versus a for the common end members dravite, schorl and elbaite as taken from Deer et al. (1986) , compared to natural olenites (open circles) described by Sokolov et al. (1986) and Ertl et al. (1997) , as well as the synthetic olenite
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Raman spectra of synthetic elbaitic, liddicoatitic, and Ca-<span class="search-highlight">olenitic</span> tourmal...
Published: 01 June 2021
Figure 2. Raman spectra of synthetic elbaitic, liddicoatitic, and Ca-olenitic tourmaline. For elbaitic and liddicoatitic tourmaline, Raman spectra have been obtained from unoriented crystal aggregates, whereas for Ca-olenitic tourmaline a single crystal is probed in – y ( zz ) y scattering
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Relationship between the Al content at the  Y  site and  [4] B in tourmalin...
Published: 01 August 2007
F ig . 4. Relationship between the Al content at the Y site and [4] B in tourmalines from the liddicoatite–elbaite series from Anjanabonoina, Madagascar ( Ertl et al. 2006 ), the olenite from Koralpe, Styria, Austria ( Ertl et al. 1997 , Hughes et al. 2000 ; optimized formula defined
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IR spectra of the natural <span class="search-highlight">olenite</span> from Koralpe (lower curve) and natural dr...
Published: 01 February 2002
F igure 3. IR spectra of the natural olenite from Koralpe (lower curve) and natural dravite from Dobrava (upper curve) in the hydroxyl stretching regions. The spectra were recorded by diffuse reflexion. The main signal of the olenite spectrum at ca. 3460 cm −1 and the weak signal at 3590 cm −1