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![First thumbnail for: UNUSUAL (Na,Mg)-ENRICHED BERYL AND ITS BREAKDOWN P...]()
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![Mg versus Fetot for bazzite from localities world-wide. Bazzite from Bugaboo Castles (Bz-BC) falls into the NYF pegmatite suite with Mg > Fetot, whereas bazzite from the Quadeville Rose Quartz pegmatite (Bz-ON) has Mg > Fetot and has a paragenetic relationship closer to those from the orogenic Kožichovice II pegmatite, Třebíč, Czech Republic.]()
![Triangular plot of beryls and bazzites from Baveno in atomic proportions. Open triangles = beryl I; solid triangles = beryl II; open diamonds = beryl III; open squares = bazzite IV; open circles = bazziteV; solid circles = bazzite VI; star = bazzite from Cuasso reported in Gramaccioli et al. (2000b).]()
![(A) Symplectic intergrowth of spessartine and quartz (3 cm wide) in pegmatite at Bugaboo Castles. (B) Isolated pod in Bugaboo Castles pegmatite with alteration of primary beryl, schorl, and spessartine to muscovite, cookeite, bazzite, bertrandite, and clay minerals. FOV 20 cm. (C) Colorless acicular prisms of bazzite with white-beige waxy balls of cookeite within an altered spessartine (orange-red) - quartz symplectite. FOV 2.5 mm. (D) Etched primary spessartine associated with secondary bazzite, bertrandite, cookeite, and muscovite. FOV 2.5 mm.]()
![The crystal structure of bazzite viewed down (A) c and (B) a. Rings of Si6O18 (red) are linked via corners to a sheet of edge-sharing AO6 (green) and BeO4 (blue). In bazzite, the A site is dominated by Sc with lesser Mg and Fe. Two channel sites, 2a and 2b, are occupied by H2O (blue spheres) and Na (yellow spheres), respectively. (C) Geometry of the O1, 2a, and 2b channel sites in bazzite. In Bz-ON and Bz-BC, the 2a is fully occupied by O (H2O, dark blue sphere), whereas the 2b site is only half-filled with Na (yellow sphere when occupied, dashed lines indicate a vacancy). Spectroscopic studies on bazzite indicate only Type II H2O in the 2a site, with H atoms within the a1-a2 plane, pointed away from the 2b site.]()
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![Triangular diagrams for bazzite from selected localities. a) □ – R+ – R2+, where □ = vacancy, R+ = Na, Cs, K, Rb, and R2+ = Ca. b) Al – Sc – (Mg + Fetot + Mn). Part of the Fe in bazzite is very likely present as Fe3+, but the stoppaniite component is ignored in this diagram owing to the absence of Fe2+/Fe3+ data.]()
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![BSE image of sample H03/01a. Scattered fragments of thortveitite in a matrix of scandian milarite and bazzite. Owing to their similar electron density contrast, the latter two minerals cannot be distinguished; in the right part of the image, the dividing line between them has been drawn on the basis of element mapping. The strong Cs zoning in bazzite is barely visible; the area with the highest Cs2O values (analyses a-13 and a-12 in Table 3) is outlined.]()
![BSE images of the beryl I in quartz and its breakdown products. a) Zoned crystal of beryl I (Brl I) cut by vein of secondary bavenite, beryl II, smectite, bazzite in quartz (Qz). See inset with Cs-depleted zone at the crystal termination and small grains of milarite overgrowing beryl I. b) Aggregate of radial bavenite (Bv), anhedral grains of beryl II (Brl II), smectite (Sme) and rare euhedral bazzite (Bz) in primary beryl I.]()
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bazzite
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1
Journal Article
The First (and Second) Known Occurrences of Bazzite in Canada – The Quadeville Rose Quartz Quarry, Ontario, and the Bugaboo Castles Aquamarine Deposit, British Columbia – Description and Crystal Structure Open Access
Publisher: Mineralogical Association of Canada
Published: 18 June 2024
The Canadian Journal of Mineralogy and Petrology (2024) 62 (3): 457–478.
...Paula C. Piilonen; Ralph Rowe; Glenn Poirier; Henrik Friis; Chris Robak; Michael Bainbridge Abstract Bazzite, ideally Be 3 Sc 2 Si 6 O 18 , has been discovered for the first time at two granitic pegmatite localities in Canada: the Quadeville Rose Quartz quarry, Ontario (Bz-ON/CMNMC 90604...
FIGURES
Journal Article
UNUSUAL (Na,Mg)-ENRICHED BERYL AND ITS BREAKDOWN PRODUCTS (BERYL II, BAZZITE, BAVENITE) FROM EUXENITE-TYPE NYF PEGMATITE RELATED TO THE OROGENIC ULTRAPOTASSIC TŘEBÍČ PLUTON, CZECH REPUBLIC Available to Purchase
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 June 2010
The Canadian Mineralogist (2010) 48 (3): 615–628.
... enclosed in massive quartz at the contact with albite or K-feldspar. Beryl I is locally altered to the secondary mineral assemblage beryl II + bavenite + bazzite + smectite. Electron-microprobe and LA–ICP–MS data yielded: slight indications of heterogeneity in beryl I, with high Na (0.20–0.32 apfu ), Mg...
FIGURES
Journal Article
CESIAN BAZZITE AND THORTVEITITE FROM CUASSO AL MONTE, VARESE, ITALY: A COMPARISON WITH THE MATERIAL FROM BAVENO, AND INFERRED ORIGIN Available to Purchase
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 December 2000
The Canadian Mineralogist (2000) 38 (6): 1409–1418.
...Carlo Maria Gramaccioli; Valeria Diella; Francesco Demartin; Paolo Orlandi; Italo Campostrini Abstract The occurrence of thortveitite, Sc 2 Si 2 O 7 , and bazzite, Be 3 Sc 2 Si 6 O 18 , in the miarolitic cavities of the granophyre of Cuasso al Monte, in Varese, Italy, is reported for the first time...
Journal Article
STRUCTURE REFINEMENT OF BAZZITE FROM PEGMATITIC AND MIAROLITIC OCCURRENCES Available to Purchase
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 December 2000
The Canadian Mineralogist (2000) 38 (6): 1419–1424.
...Francesco Demartin; Carlo Maria Gramaccioli; Tullio Pilati Abstract The crystal structure of two samples of bazzite, from the Baveno granite, in Piemonte, Italy (type locality, miarolitic occurrence) and from Tørdal, Norway (pegmatitic occurrence), has been refined. Compared to material from Alpine...
Image
Mg versus Fe tot for bazzite from localities world-wide. Bazzite from Bu... Open Access
in The First (and Second) Known Occurrences of Bazzite in Canada – The Quadeville Rose Quartz Quarry, Ontario, and the Bugaboo Castles Aquamarine Deposit, British Columbia – Description and Crystal Structure
> The Canadian Journal of Mineralogy and Petrology
Published: 18 June 2024
Fig. 7. Mg versus Fe tot for bazzite from localities world-wide. Bazzite from Bugaboo Castles (Bz-BC) falls into the NYF pegmatite suite with Mg > Fe tot , whereas bazzite from the Quadeville Rose Quartz pegmatite (Bz-ON) has Mg > Fe tot and has a paragenetic relationship closer
Image
Triangular plot of beryls and bazzites from Baveno in atomic proportions. O... Available to Purchase
in Scandium silicates from the Baveno and Cuasso al Monte NYF-granites, Southern Alps (Italy): Mineralogy and genetic inferences
> American Mineralogist
Published: 01 August 2005
F igure 6. Triangular plot of beryls and bazzites from Baveno in atomic proportions. Open triangles = beryl I; solid triangles = beryl II; open diamonds = beryl III; open squares = bazzite IV; open circles = bazziteV; solid circles = bazzite VI; star = bazzite from Cuasso reported
Image
(A) Symplectic intergrowth of spessartine and quartz (3 cm wide) in pegmati... Open Access
in The First (and Second) Known Occurrences of Bazzite in Canada – The Quadeville Rose Quartz Quarry, Ontario, and the Bugaboo Castles Aquamarine Deposit, British Columbia – Description and Crystal Structure
> The Canadian Journal of Mineralogy and Petrology
Published: 18 June 2024
Fig. 10. (A) Symplectic intergrowth of spessartine and quartz (3 cm wide) in pegmatite at Bugaboo Castles. (B) Isolated pod in Bugaboo Castles pegmatite with alteration of primary beryl, schorl, and spessartine to muscovite, cookeite, bazzite, bertrandite, and clay minerals. FOV 20 cm. (C
Image
The crystal structure of bazzite viewed down (A) c and (B) a . Rings of ... Open Access
in The First (and Second) Known Occurrences of Bazzite in Canada – The Quadeville Rose Quartz Quarry, Ontario, and the Bugaboo Castles Aquamarine Deposit, British Columbia – Description and Crystal Structure
> The Canadian Journal of Mineralogy and Petrology
Published: 18 June 2024
Fig. 8. The crystal structure of bazzite viewed down (A) c and (B) a . Rings of Si 6 O 18 (red) are linked via corners to a sheet of edge-sharing A O 6 (green) and BeO 4 (blue). In bazzite, the A site is dominated by Sc with lesser Mg and Fe. Two channel sites, 2 a and 2 b
Journal Article
Replacement textures involving four scandium silicate minerals in the Heftetjern granitic pegmatite, Norway Available to Purchase
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 November 2004
European Journal of Mineralogy (2004) 16 (6): 945–950.
...Gunnar RAADE; Franz BERNHARD; Luisa OTTOLINI Abstract Four late-hydrothermal scandium silicate minerals, related by replacement textures, were studied by EMPA and SIMS. Textural evidence shows that early-formed thortveitite is broken up by bazzite and scandian milarite, which seem to occur...
FIGURES
Image
Triangular diagrams for bazzite from selected localities. a) □ – R + – ... Available to Purchase
in UNUSUAL (Na,Mg)-ENRICHED BERYL AND ITS BREAKDOWN PRODUCTS (BERYL II, BAZZITE, BAVENITE) FROM EUXENITE-TYPE NYF PEGMATITE RELATED TO THE OROGENIC ULTRAPOTASSIC TŘEBÍČ PLUTON, CZECH REPUBLIC
> The Canadian Mineralogist
Published: 01 June 2010
F ig . 6. Triangular diagrams for bazzite from selected localities. a) □ – R + – R 2+ , where □ = vacancy, R + = Na, Cs, K, Rb, and R 2+ = Ca. b) Al – Sc – (Mg + Fe tot + Mn). Part of the Fe in bazzite is very likely present as Fe 3+ , but the stoppaniite component is ignored
Image
EXPERIMENTAL AND CRYSTAL STRUCTURE DATA FOR CANADIAN BAZZITE Open Access
in The First (and Second) Known Occurrences of Bazzite in Canada – The Quadeville Rose Quartz Quarry, Ontario, and the Bugaboo Castles Aquamarine Deposit, British Columbia – Description and Crystal Structure
> The Canadian Journal of Mineralogy and Petrology
Published: 18 June 2024
TABLE 3. EXPERIMENTAL AND CRYSTAL STRUCTURE DATA FOR CANADIAN BAZZITE
Image
EMPIRICAL BOND VALENCES (vu) FOR CANADIAN BAZZITE Open Access
in The First (and Second) Known Occurrences of Bazzite in Canada – The Quadeville Rose Quartz Quarry, Ontario, and the Bugaboo Castles Aquamarine Deposit, British Columbia – Description and Crystal Structure
> The Canadian Journal of Mineralogy and Petrology
Published: 18 June 2024
TABLE 6. EMPIRICAL BOND VALENCES (vu) FOR CANADIAN BAZZITE
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BOND LENGTH, BOND ANGLE, AND POLYHEDRAL INFORMATION FOR BAZZITE Open Access
in The First (and Second) Known Occurrences of Bazzite in Canada – The Quadeville Rose Quartz Quarry, Ontario, and the Bugaboo Castles Aquamarine Deposit, British Columbia – Description and Crystal Structure
> The Canadian Journal of Mineralogy and Petrology
Published: 18 June 2024
TABLE 5. BOND LENGTH, BOND ANGLE, AND POLYHEDRAL INFORMATION FOR BAZZITE
Image
COMPARISON OF SITE OCCUPANCIES AND NUMBER OF ELECTRONS FROM EMPA AND SXRD F... Open Access
in The First (and Second) Known Occurrences of Bazzite in Canada – The Quadeville Rose Quartz Quarry, Ontario, and the Bugaboo Castles Aquamarine Deposit, British Columbia – Description and Crystal Structure
> The Canadian Journal of Mineralogy and Petrology
Published: 18 June 2024
TABLE 7. COMPARISON OF SITE OCCUPANCIES AND NUMBER OF ELECTRONS FROM EMPA AND SXRD FOR BAZZITE
Image
BSE image of sample H03/01a. Scattered fragments of thortveitite in a matri... Available to Purchase
in Replacement textures involving four scandium silicate minerals in the Heftetjern granitic pegmatite, Norway
> European Journal of Mineralogy
Published: 01 November 2004
Fig. 1. BSE image of sample H03/01a. Scattered fragments of thortveitite in a matrix of scandian milarite and bazzite. Owing to their similar electron density contrast, the latter two minerals cannot be distinguished; in the right part of the image, the dividing line between them has been drawn
Image
BSE images of the beryl I in quartz and its breakdown products. a) Zoned cr... Available to Purchase
in UNUSUAL (Na,Mg)-ENRICHED BERYL AND ITS BREAKDOWN PRODUCTS (BERYL II, BAZZITE, BAVENITE) FROM EUXENITE-TYPE NYF PEGMATITE RELATED TO THE OROGENIC ULTRAPOTASSIC TŘEBÍČ PLUTON, CZECH REPUBLIC
> The Canadian Mineralogist
Published: 01 June 2010
F ig . 2. BSE images of the beryl I in quartz and its breakdown products. a) Zoned crystal of beryl I (Brl I) cut by vein of secondary bavenite, beryl II, smectite, bazzite in quartz (Qz). See inset with Cs-depleted zone at the crystal termination and small grains of milarite overgrowing beryl I
Journal Article
Scandium silicates from the Baveno and Cuasso al Monte NYF-granites, Southern Alps (Italy): Mineralogy and genetic inferences Available to Purchase
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 August 2005
American Mineralogist (2005) 90 (8-9): 1442–1452.
...F igure 6. Triangular plot of beryls and bazzites from Baveno in atomic proportions. Open triangles = beryl I; solid triangles = beryl II; open diamonds = beryl III; open squares = bazzite IV; open circles = bazziteV; solid circles = bazzite VI; star = bazzite from Cuasso reported...
FIGURES
Journal Article
Scandium minerals in the miaroles of granite at Baveno, Italy Available to Purchase
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 November 2004
European Journal of Mineralogy (2004) 16 (6): 951–956.
...Carlo Maria GRAMACCIOLI; Italo CAMPOSTRINI; Paolo ORLANDI Abstract The discovery of bazzite [Be 3 Sc 2 Si 6 O 18 ] in the granites at Baveno, Italy, dates back to 1915, just a few years after the discovery in Norway of thortveitite, the first known scandium mineral (1911). In 1982 two new scandium...
FIGURES
Image
ELECTRON MICROPROBE ANALYSES FOR BAZZITE FROM QUADEVILLE ROSE QUARTZ PEGMAT... Open Access
in The First (and Second) Known Occurrences of Bazzite in Canada – The Quadeville Rose Quartz Quarry, Ontario, and the Bugaboo Castles Aquamarine Deposit, British Columbia – Description and Crystal Structure
> The Canadian Journal of Mineralogy and Petrology
Published: 18 June 2024
TABLE 1. ELECTRON MICROPROBE ANALYSES FOR BAZZITE FROM QUADEVILLE ROSE QUARTZ PEGMATITE, ONTARIO (Bz-ON), AND BUGABOO CASTLES, BRITISH COLUMBIA (Bz-BC)
Image
POWDER X-RAY DIFFRACTION DATA FOR CANADIAN BAZZITE, SYNTHETIC Be 3 Sc 2 Si ... Open Access
in The First (and Second) Known Occurrences of Bazzite in Canada – The Quadeville Rose Quartz Quarry, Ontario, and the Bugaboo Castles Aquamarine Deposit, British Columbia – Description and Crystal Structure
> The Canadian Journal of Mineralogy and Petrology
Published: 18 June 2024
TABLE 2. POWDER X-RAY DIFFRACTION DATA FOR CANADIAN BAZZITE, SYNTHETIC Be 3 Sc 2 Si 6 O 18 , AND HIGH-Na BERYL
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