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cerchiaraite

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Journal Article

Cerchiaraite-(Fe) and cerchiaraite-(Al), two new barium cyclosilicate chlorides from Italy and California, USA Available to Purchase

A. R. Kampf, A. C. Roberts, K. E. Venance, C. Carbone, D. Belmonte, G. E. Dunning, R. E. Walstrom
Published: 01 February 2013
Mineralogical Magazine (2013) 77 (1): 69–80.
DOI: https://doi.org/10.1180/minmag.2013.077.1.07
...A. R. Kampf; A. C. Roberts; K. E. Venance; C. Carbone; D. Belmonte; G. E. Dunning; R. E. Walstrom Abstract The ideal formula for members of the cerchiaraite group is Ba 4 M 4 (Si 4 O 12 )O 2 (OH) 4 Cl 2 [Si 2 O 3 (OH) 4 ], where M represents Mn 3+ , Fe 3+ or Al in the octahedral site. A suffix...
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View PDF for article title, <span class="search-highlight">Cerchiaraite</span>-(Fe) and <span class="search-highlight">cerchiaraite</span>-(Al), two new barium cyclosilicate chlorides from Italy and California, USA
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Journal Article

Bobmeyerite, a new mineral from Tiger, Arizona, USA, structurally related to cerchiaraite and ashburtonite Available to Purchase

A. R. Kampf, J. J. Pluth, Y.-S. Chen, A. C. Roberts, R. M. Housley
Published: 01 February 2013
Mineralogical Magazine (2013) 77 (1): 81–91.
DOI: https://doi.org/10.1180/minmag.2013.077.1.08
...: 10.051(35)(110); 5.474(54)(011,101); 5.011(35)(220); 4.333(43)(121,211); 3.545(34)(040,400); 3.278(77)(330,231,321); 2.9656(88)(141,002,411); 2.5485(93)(051,222,501); 1.873(39)(multiple). Bobmeyerite has the same structural framework as cerchiaraite and ashburtonite. In the structure, which refined to R...
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View PDF for article title, Bobmeyerite, a new mineral from Tiger, Arizona, USA, structurally related to <span class="search-highlight">cerchiaraite</span> and ashburtonite
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Journal Article

Cerchiaraite and Ca-bearing noélbensonite from Woods mine, New South Wales, Australia Available to Purchase

Douglas S. COOMBS, Yosuke KAWACHI, Hiroyuki MIURA, Debra CHAPPELL
Published: 01 January 2004
European Journal of Mineralogy (2004) 16 (1): 185–189.
DOI: https://doi.org/10.1127/0935-1221/2004/0016-0185
...Douglas S. COOMBS; Yosuke KAWACHI; Hiroyuki MIURA; Debra CHAPPELL Abstract Cerchiaraite occurs as tiny blocky crystals and sheafs of irresolvable fibres in the Woods mine in northern New South Wales, Australia. It forms veinlets from <10 to ∼90 μm wide in fractures cutting serandite-quartz...
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View PDF for article title, <span class="search-highlight">Cerchiaraite</span> and Ca-bearing noélbensonite from Woods mine, New South Wales, Australia
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Aggregate in OU 68686 of cerchiaraite (ch) and noélbensonite (nb) interpreted as replacing remnants of a single crystal of serandite (sr) intergrown with quartz (qz) and itself partly replaced by namansilite (ns) which is also being replaced by cerchiaraite and Ca-rich noélbensonite. The patches of cerchiaraite are aggregates of granules about 5–20 μm diameter, and those of noélbensonite are fan-shaped sheafs of platelets up to 100 μm long. Length of field of view: 1.3 mm.

Aggregate in OU 68686 of cerchiaraite (ch) and noélbensonite (nb) interpre... Available to Purchase

Published: 01 January 2004
Fig. 3. Aggregate in OU 68686 of cerchiaraite (ch) and noélbensonite (nb) interpreted as replacing remnants of a single crystal of serandite (sr) intergrown with quartz (qz) and itself partly replaced by namansilite (ns) which is also being replaced by cerchiaraite and Ca-rich noélbensonite
Image
Photomicrographs from the same thin section as ronpetersonite in plane polarized light (left) and crossed nicols (right) showing the textural relationships of cymrite, witherite, cerchiaraite, and celsian, which indicate that this unit has experienced extensive hydrothermal alteration of the primary assemblage. Ccr = cerchiaraite (-Fe and -Al intermediates), Cls = Celsian, Cym = Cymrite, Wth = Witherite.

Photomicrographs from the same thin section as ronpetersonite in plane pola... Available to Purchase

Published: 22 April 2024
Fig. 2. Photomicrographs from the same thin section as ronpetersonite in plane polarized light (left) and crossed nicols (right) showing the textural relationships of cymrite, witherite, cerchiaraite, and celsian, which indicate that this unit has experienced extensive hydrothermal alteration
Image
Cerchiaraite-(Fe)–cerchiaraite-(Al) with pyrrhotite (brown metallic), tobermorite (white silky) and diopside (pale yellow) embedded in calcite from the Esquire No. 8 claim; field of view is 3 mm.

Cerchiaraite-(Fe)–cerchiaraite-(Al) with pyrrhotite (brown metallic), tober... Available to Purchase

Published: 01 February 2013
F ig . 3. Cerchiaraite-(Fe)–cerchiaraite-(Al) with pyrrhotite (brown metallic), tobermorite (white silky) and diopside (pale yellow) embedded in calcite from the Esquire No. 8 claim; field of view is 3 mm.
Image
Ternary plot of cerchiaraite compositions based upon atom% Mn, Fe and Al. The compositions labelled ‘Cer0’ correspond to those of the original Mn-dominant cerchiaraite of Basso et al. (2000).

Ternary plot of cerchiaraite compositions based upon atom% Mn, Fe and Al. T... Available to Purchase

Published: 01 February 2013
F ig . 4. Ternary plot of cerchiaraite compositions based upon atom% Mn, Fe and Al. The compositions labelled ‘Cer0’ correspond to those of the original Mn-dominant cerchiaraite of Basso et al. ( 2000 ).
Image
Cerchiaraite-(Fe)–cerchiaraite-(Al) with pyrrhotite (brown metallic), muirite (yellow), traskite (orange) and diopside (nearly colourless) embedded in witherite from the Esquire No. 7 claim; field of view is 3 mm.

Cerchiaraite-(Fe)–cerchiaraite-(Al) with pyrrhotite (brown metallic), muiri... Available to Purchase

Published: 01 February 2013
F ig . 2. Cerchiaraite-(Fe)–cerchiaraite-(Al) with pyrrhotite (brown metallic), muirite (yellow), traskite (orange) and diopside (nearly colourless) embedded in witherite from the Esquire No. 7 claim; field of view is 3 mm.
Image
Veinlet of cerchiaraite cutting a serandite-quartz aggregate in OU 68677. Replacement of serandite (light grey with cleavages) by cerchiaraite (dark) spreads from the veinlet into the upper part of the field (quartz clear). Plane-polarized light; darkest areas in the vein result from deep-green absorption tints for the e-ray; medium-dark areas result from yellow-brown colour for the o-ray. Field of view: 450 × 300 μm.

Veinlet of cerchiaraite cutting a serandite-quartz aggregate in OU 68677. R... Available to Purchase

Published: 01 January 2004
Fig. 2. Veinlet of cerchiaraite cutting a serandite-quartz aggregate in OU 68677. Replacement of serandite (light grey with cleavages) by cerchiaraite (dark) spreads from the veinlet into the upper part of the field (quartz clear). Plane-polarized light; darkest areas in the vein result from deep
Image
Structure of cerchiaraite (Esq8) viewed slightly canted down [001].

Structure of cerchiaraite (Esq8) viewed slightly canted down [001]. Available to Purchase

Published: 01 February 2013
F ig . 5. Structure of cerchiaraite (Esq8) viewed slightly canted down [001].
Image
(A–I) Photomicrographs and BSE images of ronpetersonite. Left column (A, D, G): Plane polarized light (PPL). Middle column (B, E, H): Crossed nicols. Right column (C, F, I): Backscatter electron images showing ronpetersonite (white, outlined by orange dashed lines in the corresponding PPL image) surrounded by witherite (light gray) and containing inclusions of witherite and cerchiaraite-(Al) (medium gray). Embayment of diopside in ronpetersonite is also noted. The brown mineral in (G) and (H) is taramellite. Note that the BSE images are at a different scale to the photomicrographs but are paired with the grain they show in PPL and XPL. (A, B, D, E) Field of view: 1.2 mm; (C, F) field of view: 0.7 mm; (I) field of view: 0.15 mm. Ccr = cerchiaraite (-Fe and -Al intermediates), Cls = celsian, Di = diopside, Edi = edingtonite, Qz = quartz, Rpt = ronpetersonite, Tmel = taramellite, Wth = witherite.

(A–I) Photomicrographs and BSE images of ronpetersonite. Left column (A, D,... Available to Purchase

Published: 22 April 2024
image) surrounded by witherite (light gray) and containing inclusions of witherite and cerchiaraite-(Al) (medium gray). Embayment of diopside in ronpetersonite is also noted. The brown mineral in (G) and (H) is taramellite. Note that the BSE images are at a different scale to the photomicrographs
Journal Article

Ronpetersonite, BaWO 4 , the Barium Analogue of Scheelite, a New Mineral from the Gun Occurrence in the Yukon, Canada Available to Purchase

Mary G. Macquistan, Lee A. Groat
Published: 22 April 2024
The Canadian Journal of Mineralogy and Petrology (2024) 62 (2): 405–415.
DOI: https://doi.org/10.3749/2300059
...Fig. 2. Photomicrographs from the same thin section as ronpetersonite in plane polarized light (left) and crossed nicols (right) showing the textural relationships of cymrite, witherite, cerchiaraite, and celsian, which indicate that this unit has experienced extensive hydrothermal alteration...
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View PDF for article title, Ronpetersonite, BaWO 4 , the Barium Analogue of Scheelite, a New Mineral from the Gun Occurrence in the Yukon, Canada
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Journal Article

New Mineral Names, Free

Olivier C. Gagne, Dmitriy I. Belakovskiy
Published: 01 January 2016
American Mineralogist (2016) 101 (1): 235–237.
DOI: https://doi.org/10.2138/am-2016-NMN101115
...Olivier C. Gagne; Dmitriy I. Belakovskiy This New Mineral Names has entries for 5 new minerals, including cerchiaraite-(Al), cerchiaraite-(Fe), štěpite, vysokýite, and yaroshevskite. The calculated 2 V for štěpite is 43°. Thus one of the measured values: 2 V or refractive index β...
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Image
Cerchiaraite-(Fe) with hematite (upper right) from the Cerchiara mine (specimen Cer1); field of view is 3 mm.

Cerchiaraite-(Fe) with hematite (upper right) from the Cerchiara mine (spec... Available to Purchase

Published: 01 February 2013
F ig . 1. Cerchiaraite-(Fe) with hematite (upper right) from the Cerchiara mine (specimen Cer1); field of view is 3 mm.
Journal Article

Demagistrisite, the Missing Link in a Polysomatic Series from Lawsonite to Orientite Available to Purchase

Fernando Cámara, Anthony R. Kampf, Fabrizio Nestola, Marco E. Ciriotti, Deborah Spartá, Corrado Balestra
Published: 08 January 2021
The Canadian Mineralogist (2021) 59 (1): 91–105.
DOI: https://doi.org/10.3749/canmin.2000021
... of rhythmic interlaying of braunite-bearing metasediments (5–15 cm thick) and hematite-rich cherts. Demagistrisite occurs in association with cerchiaraite-(Mn), namansilite, noelbensonite, orientite, richterite, ruizite, and saponite in matrix consisting of braunite, calcite, cryptomelane, orthoclase...
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View PDF for article title, Demagistrisite, the Missing Link in a Polysomatic Series from Lawsonite to Orientite
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Journal Article

ITSIITE, Ba 2 Ca(BSi 2 O 7 ) 2 , A NEW MINERAL SPECIES FROM YUKON, CANADA: DESCRIPTION AND CRYSTAL STRUCTURE Available to Purchase

Anthony R. Kampf, Ronald C. Peterson, Brian R. Joy
Published: 01 June 2014
The Canadian Mineralogist (2014) 52 (3): 401–407.
DOI: https://doi.org/10.3749/canmin.52.3.401
...Anthony R. Kampf; Ronald C. Peterson; Brian R. Joy Abstract Itsiite, ideally Ba 2 Ca(BSi 2 O 7 ) 2 , is a new mineral from the Gun claim, just south of the Itsi Range, Yukon Territory, Canada. The new mineral occurs in low temperature, late-stage veins in direct association with cerchiaraite-(Fe...
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View PDF for article title, ITSIITE, Ba 2 Ca(BSi 2 O 7 ) 2 , A NEW MINERAL SPECIES FROM YUKON, CANADA: DESCRIPTION AND CRYSTAL STRUCTURE
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Journal Article

Bavsiite, Ba 2 V 2 O 2 [Si 4 O 12 ], mineral data and crystal structure Available to Purchase

Hans-Peter Bojar, Franz Walter, Judith Baumgartner
Published: 12 September 2019
Mineralogical Magazine (2019) 83 (6): 821–827.
DOI: https://doi.org/10.1180/mgm.2019.59
... are alstonite, baryte, celsian, diopside, fresnoite, mica, suzukiite, walstromite, witherite and minerals of the cerchiaraite group. Bavsiite is optical uniaxial (+), with ω = 1.725(3) and ε = 1.750(3) (589 nm) and pleochroic. Electron microprobe analyses yielded the empirical formula Na 0.02 Ba 1.98 Ti 0.16 Fe...
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View PDF for article title, Bavsiite, Ba 2 V 2 O 2 [Si 4 O 12 ], mineral data and crystal structure
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Averages of EMP analyses and atomic proportions of cerchiaraite from Cerchi... Available to Purchase

Published: 01 January 2004
Tab. 1. Averages of EMP analyses and atomic proportions of cerchiaraite from Cerchiara mine, Italy ( Basso et al. , 2000 ), and Woods mine, New South Wales, OU 68686.
Image
White to light greenish-blue itsiite plates with darker greenish-blue quartz crystals. The greenish-blue color in both cases is due to inclusions of cerchiaraite-(Fe); FOV = 4 mm.

White to light greenish-blue itsiite plates with darker greenish-blue quart... Available to Purchase

Published: 01 June 2014
Fig. 2 White to light greenish-blue itsiite plates with darker greenish-blue quartz crystals. The greenish-blue color in both cases is due to inclusions of cerchiaraite-(Fe); FOV = 4 mm.
Journal Article

GEORGEROBINSONITE, Pb 4 (CrO 4 ) 2 (OH) 2 FCl, A NEW CHROMATE MINERAL FROM THE MAMMOTH – ST. ANTHONY MINE, TIGER, PINAL COUNTY, ARIZONA: DESCRIPTION AND CRYSTAL STRUCTURE Available to Purchase

Mark A. Cooper, Neil A. Ball, Frank C. Hawthorne, Werner H. Paar, Andrew C. Roberts, Elizabeth Moffatt
Published: 01 June 2011
The Canadian Mineralogist (2011) 49 (3): 865–876.
DOI: https://doi.org/10.3749/canmin.49.3.865
... mine, Tiger, Pinal County, Arizona. It occurs as minute intergrowths of thin tabular orange crystals less than 0.1 mm across with {001} dominant and minor {010} and {110}, associated with caledonite, a cerchiaraite-related mineral, cerussite, diaboleite, Cr-bearing leadhillite, matlockite, murdochite...
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View PDF for article title, GEORGEROBINSONITE, Pb 4 (CrO 4 ) 2 (OH) 2 FCl, A NEW CHROMATE MINERAL FROM THE MAMMOTH – ST. ANTHONY MINE, TIGER, PINAL COUNTY, ARIZONA: DESCRIPTION AND CRYSTAL STRUCTURE
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