Quick
Search: 
 
advanced search
 GSW Home    GeoRef Home    My GSW Alerts    Contact GSW    About GSW    Journals List    Help 
The Canadian Mineralogist Signup for GSW Email News
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH SEARCH RESULT

Results 1 to 10 (of 17 found)
[View Next 7 Results]


 
1.

Can Mineral 2008;46:709-716.
NIELSENITE, PdCu3, A NEW PLATINUM-GROUP INTERMETALLIC MINERAL SPECIES FROM THE SKAERGAARD INTRUSION, GREENLAND
Andrew M. McDonald, Louis J. Cabri, Nikolay S. Rudashevsky, Christopher J. Stanley, Vladimir N. Rudashevsky, and Kirk C. Ross
  [Abstract]   [Full Text]   [PDF]

Figure 1
View larger version (100K)

FIG. 1. BSE images of nielsenite (nls), skaergaardite (sk), chalcocite + bornite (cc + bn), bornite (bn) and chalcocite (cc). (a) An angular crystal of nielsenite with skaergaardite and bornite; (b) a microglobule containing nielsenite; c) a subrounded intergrowth of Pd–Cu intermetallic compounds with bornite–chalcocite; (d) a large microglobule of chalcocite with anhe-dral inclusions of nielsenite; (e) nielsenite with bornite–chalcocite (note the exsolution features in the bornite–chalcocite); (f) a subrounded grain of nielsenite with a small unnamed (Pd,Cu,Sn) intermetallic compound; (g) a grain of skaer-gaardite with a possible inclusion (?) of nielsenite, along with chalcocite; (h) a composite skaergaardite–nielsenite grain (note sharp contact between the phases), and (h) an angular grain of nielsenite with chalcocite.


 
2.

Can Mineral 2004;42:1757-1769.
PUTZITE, (Cu4.7Ag3.3){sum}8GeS6, A NEW MINERAL SPECIES FROM CAPILLITAS, CATAMARCA, ARGENTINA: DESCRIPTION AND CRYSTAL STRUCTURE
Werner H. Paar, Andrew C. Roberts, Peter Berlepsch, Thomas Armbruster, Dan Topa, and Georg Zagler
  [Abstract]   [Full Text]   [PDF]

Figure 2
View larger version (128K)

FIG. 2. A) Putzite (pu) rimmed by unnamed Cu8Fe2ZnGe2S12 (un1) in association with chalcocite (cc) and sphalerite (sp) (sample PR/C2). B) Putzite (pu) rimmed by unnamed Cu8Fe2ZnGe2S12 (un1) in association with thalcusite (tl), bornite (bo), chalcocite (cc), sphalerite and quartz (qu) (sample PR/C2). C) Relic of putzite (pu) in a fine-grained chalcocite – sphalerite – chalcopyrite – covellite matrix associated with catamarcaite (ca) (sample X19/P2). D) Putzite (pu) in close association with unnamed Cu8Fe2ZnGe2S12 (un1) and catamarcaite (ca), as inclusions in chalcocite–sphalerite (cc/sp) (sample X19/P2).


 
3.

Can Mineral 2004;42:1541-1562.
THE ROLE OF SALINE FLUIDS BASE-METAL AND GOLD MINERALIZATION AT THE COBALT HILL PROSPECT NORTHEAST OF THE SUDBURY IGNEOUS COMPLEX, ONTARIO: A FLUID-INCLUSION AND MINERALOGICAL STUDY
Eva S. Schandl
  [Abstract]   [Full Text]   [PDF]

Figure 5
Figure 5
Figure 5
Figure 5
Figure 5
Figure 5
Figure 5
Figure 5
View larger version (763K)

FIG. 5. Coarse-grained pyrite with minute inclusions of Cu–Ni sulfides, coloradoite and gold. a. Inclusions of pentlandite (pn), chalcopyrite (cp) and chalcocite (cc) in pyrite. Scale bar: 0.2 mm. b. Inclusions of pentlandite (pn) and chalcopyrite (cp) in pyrite. Scale bar: 0.2 mm. c. Chalcocite (cc) inclusion in pyrite. Scale bar: 1 mm. d. Pentlandite (pn) and chalcopyrite (cp) inclusions in pyrite. Scale bar: 0.2 mm. e. Chalcocite (cc) and chalcopyrite (cp) inclusions in pyrite. Scale bar: 0.2 mm. f. Numerous small inclusions of chalcocite in pyrite. Scale bar: 0.2 mm. g. Numerous small inclusions of chalcocite and pentlandite in pyrite. Scale bar: 0.2 mm. h. Gold (Au), coloradoite (Clr) and chalcopyrite (cp) inclusions in pyrite. Scale bar: 0.1 mm.


 
4.

Can Mineral 2006;44:1481-1497.
CATAMARCAITE, Cu6GeWS8, A NEW GERMANIUM SULFIDE MINERAL SPECIES FROM CAPILLITAS, CATAMARCA, ARGENTINA: DESCRIPTION, PARAGENESIS AND CRYSTAL STRUCTURE
Hubert Putz, Werner H. Paar, Dan Topa, Emil Makovicky, and Andrew C. Roberts
  [Abstract]   [Full Text]   [PDF]

Figure 3
View larger version (113K)

FIG. 3. a) Catamarcaite (Ct) in contact with luzonite (Luz), unnamed Cu8Fe2ZnGe2S12 (un), sphalerite (Sp) and fine-grained chalcocite – covellite (Cc/Cv) (sample X19/H12). b) Anhedral inclusions of catamarcaite (Ct) in putzite (Pu) with an envelope of unnamed Cu8Fe2ZnGe2S12 (un); putzite is replaced by chalcocite (Cc) (sample PR/C3P). c) Briartite-type phase (Bri) in close association with catamarcaite (Ct) lining a cavity in massive bornite (Bn) – chalcocite (Cc) ore; Sp is sphalerite (sample PR/C2).


 
5.

Can Mineral 2006;44:1481-1497.
CATAMARCAITE, Cu6GeWS8, A NEW GERMANIUM SULFIDE MINERAL SPECIES FROM CAPILLITAS, CATAMARCA, ARGENTINA: DESCRIPTION, PARAGENESIS AND CRYSTAL STRUCTURE
Hubert Putz, Werner H. Paar, Dan Topa, Emil Makovicky, and Andrew C. Roberts
  [Abstract]   [Full Text]   [PDF]

Figure 2
View larger version (128K)

FIG. 2. a) Network-like aggregate of catamarcaite (Ct) within a bornite – digenite – chalcocite matrix (Dg/Cc) showing abundant sphalerite (Sp) (sample X19/P). b) Hübnerite (Hbn) was replaced by catamarcaite (Ct), which itself was replaced by chalcocite – sphalerite (Cc/Sp); Qtz is quartz (sample X19/H12). c) Fractured aggregate of catamarcaite (Ct) composed of twinned grains with red internal reflections; Dg is digenite, Sp sphalerite. Oil immersion, crossed polars (sample X19/P2).


 
6.

Can Mineral 2007;45:1519-1523.
CALVERTITE, Cu5Ge0.5S4, A NEW MINERAL SPECIES FROM TSUMEB, NAMIBIA
John L. Jambor, Andrew C. Roberts, Lee A. Groat, Chris J. Stanley, Alan J. Criddle, and Mark N. Feinglos
  [Abstract]   [Full Text]   [PDF]

Figure 1
View larger version (83K)

FIG. 1. SEM images of (a) the typical appearance of massive calvertite, which makes up the bulk of the image. The granular texture is made apparent by the presence of a thin rind of chalcocite (white) on the calvertite grains. The interstitial material consists of pits and heterogeneous oxidation-derived products. (b) Renierite (ren) with inclusions of gallite (gall) cut by calvertite (calv); all are cut by thread-like veinlets of chalcocite (white).


 
7.

Can Mineral 2004;42:1501-1521.
GENESIS OF HIGH-SULFIDATION VINCIENNITE-BEARING Cu–As–Sn (<Au) ASSEMBLAGE FROM THE RADKA EPITHERMAL COPPER DEPOSIT, BULGARIA: EVIDENCE FROM MINERALOGY AND INFRARED MICROTHERMOMETRY OF ENARGITE
Kalin Kouzmanov, Claire Ramboz, Laurent Bailly, and Kamen Bogdanov
  [Abstract]   [Full Text]   [PDF]

Figure 5
View larger version (108K)

FIG. 5. Mineralogy of the vinciennite-bearing Cu–As–Sn assemblage in the Radka deposit. a) Zoned crystal of vinciennite (Vn) in the interstice of an aggregate of enargite (En). Chalcopyrite (Ccp) is altered to chalcocite (Cc) and covellite (Cv). Backscattered electron (BSE) image. b) Vinciennite crystals formed at the contact between tennantite (Tn) and chalcopyrite replacing enargite (En). Photomicrograph in reflected light (parallel nicols). c) Secondary assemblage of bornite (Bn) – chalcocite – covellite replacing chalcopyrite in association with enargite, tennantite, vinciennite and colusite (Col). Photomicrograph in reflected light (partly crossed nicols). d) Tabular crystal of covellite included in barite (Brt) surrounded by chalcopyrite and tennantite. Photomicrograph in reflected light (parallel nicols). e) Chalcopyrite–tennantite symplectitic intergrowth texture. BSE image. f) Inclusion of zoned colusite in enargite crystal. BSE image.


 
8.

Can Mineral 2008;46:249-261.
COPPER-BEARING PYRITE FROM THE COKA MARIN POLYMETALLIC DEPOSIT, SERBIA: MINERAL INCLUSIONS OR TRUE SOLID-SOLUTION?
Aleksandar Pacevski, Eugen Libowitzky, Perisa Zivkovic, Radovan Dimitrijevic, and Ljubomir Cvetkovic
  [Abstract]   [Full Text]   [PDF]

Figure 4
View larger version (46K)

FIG. 4. Copper minerals form the zones (a), cores (b) and colloform shapes (c) in pyrite 2 (air, parallel nicols). Symbols: Bn: bornite, Brt: barite, Cc: chalcocite.


 
9.

Can Mineral 2001;39:937-956.
ORE-MINERAL TEXTURES AND THE TALES THEY TELL
James R. Craig
  [Abstract]   [Full Text]   [PDF]

Figure 11
Figure 11
Figure 11
View larger version (456K)

FIG. 11. Replacement reactions can occur under a broad range of conditions. Under near-surface conditions, wood structure in (a) has been replaced by pyrite in the cells and chalcocite between the cells. At higher temperature during skarn formation, pyrite grains in (b) have been partly replaced by magnetite. Under hydrothermal conditions, a fractured crystal of pyrite in (c) has been partially replaced by chalcopyrite and engulfed in bornite. Each texture records at least two episodes in the history of the deposits in terms of conditions and the nature of the initial and replacing fluids. Provenance: (a) from Nacimiento, New Mexico, (b) from Mashan, China, and (c) from Magma, Arizona. Width of field of view is 0.8 mm in each case.


 
10.

Can Mineral 2003;41:185-200.
POLYMETALLIC SULFIDES AND SULFOSALTS OF THE PONGKOR EPITHERMAL GOLD–SILVER DEPOSIT, WEST JAVA, INDONESIA
I Wayan Warmada, Bernd Lehmann, and Marolop Simandjuntak
  [Abstract]   [Full Text]   [PDF]

Figure 2
View larger version (26K)

FIG. 2. a) Polymetallic association: low-Fe sphalerite coexists with chalcopyrite, galena, polybasite and acanthite. b) Sphalerite with DIS–ccp associated with Au–Ag alloy and galena. c) Corroded Ag-rich chalcocite associated with Cu-rich polybasite, Au–Ag alloy and massicot. d) Willemite associated with Au–Ag alloy. e) Brown famatinite associated with chalcopyrite, covellite, acanthite, galena, sphalerite and pyrite. f) Uytenbogaardtite associated with galena, polybasite, acanthite and sphalerite. g) Oleander-leaf texture of stromeyerite associated with Au–Ag alloy and network of gold. h) Pseudo-eutectic texture of stromeyerite and Se-rich acanthite associated with gold. Stromeyerite is partially replaced by mckinstryite. Mineral symbols are given in Table 3.

[View Next 7 Results]


JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH SEARCH RESULT
Copyright © 2010 by Mineralogical Association of Canada