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Cylindrit-Gruppe (Cylindrite group)

Bilder (96 Bilder gesamt)

Merelaniite, Tremolite, Prehnite, Chabazite, Graphite, Calcite
Aufrufe (File:
1477698403
): 1523
Merelaniite, Tremolite, Prehnite, Chabazite, Graphite, Calcite
Cylindrical whisker (0.73 mm long) of merelaniite associated with tremolite, and prehnite (not shown also include graphite, calcite, and chabazite). Locality: Merelani Hills, Lelatema Mts, Simanjiro District, Manyara Region, Tanzania;
Copyright: John Jaszczak; Beitrag: Stefan
Fundort: Tansania/Manyara, Region/Simanjiro, Distrikt/Merelani (Mererani)
Mineral: Merelaniit
Bild: 1477698403
Wertung: 10 (Stimmen: 2)
Lizenz: Nur zur Mineralienatlas-Projekt-Verwendung
Merelaniite, Tremolite, Prehnite, Chabazite, Graphite, Calcite

Cylindrical whisker (0.73 mm long) of merelaniite associated with tremolite, and prehnite (not shown also include graphite, calcite, and chabazite). Locality: Merelani Hills, Lelatema Mts, Simanjir...

Copyright: John Jaszczak
Beitrag: Stefan 2016-10-28
Lokation: Merelani (Mererani) / Simanjiro, Distrikt / Manyara, Region / Tansania
Merelaniite
Aufrufe (File:
1480437438
): 1101
Merelaniite
Optical photographs of merelaniite and some associated minerals: (a) 0.73-mm-long “cylindrical” whisker of merelaniite associated with tremolite, prehnite, and chabazite (private collection); (b) Whisker of merelaniite (0.9-mm section), associated with calcite, showing undulating diameters (Simon Harrison collection; sample 3941); (c) 2.5-mm section of a 5-mm-long merelaniite whisker (maximum diameter 0.18 mm) showing naturally unraveled ribbons, some partially enclosed in calcite, and associated with yellow prehnite (Simon Harrison collection; sample 3941); John A. Jaszczak, Michael S. Rumsey, Luca Bindi, Stephen A. Hackney, Michael A.Wise, Chris J. Stanley and John Spratt
Copyright: John A. Jaszczak; Beitrag: Stefan
Fundort: Tansania/Manyara, Region/Simanjiro, Distrikt/Merelani (Mererani)
Mineral: Merelaniit
Bild: 1480437438
Wertung: 10 (Stimmen: 2)
Lizenz: Creative Commons - Namensnennung (CC-BY) V.3.0
Merelaniite

Optical photographs of merelaniite and some associated minerals: (a) 0.73-mm-long “cylindrical” whisker of merelaniite associated with tremolite, prehnite, and chabazite (private collection); (b) W...

Copyright: John A. Jaszczak
Beitrag: Stefan 2016-11-29
Lokation: Merelani (Mererani) / Simanjiro, Distrikt / Manyara, Region / Tansania
Merelaniite whiskers
Aufrufe (File:
1480437673
): 637
Merelaniite whiskers
Scanning electron microscope (SEM) images of samples taken from the holotype specimen. (a) Cluster of merelaniite whiskers with one notably larger cylinder, associated with graphite. (Sample 3666i-190i.); (b) Section of a merelaniite-graphite cluster showing well-formed graphite crystals (Sample 3666i-190h.); (c,d) Merelaniite whiskers showing partially un-wound layers. (Sample 3666-196a.); (e,f) Individual whiskers showing conical ends and undulating diameters (Samples 3666i 190d and 3666 196c). Images taken using a Hitachi S-4700 field-emission SEM (Hitachi, Tokyo, Japan). John A. Jaszczak, Michael S. Rumsey, Luca Bindi, Stephen A. Hackney, Michael A.Wise, Chris J. Stanley and John Spratt
Copyright: John A. Jaszczak; Beitrag: Stefan
Fundort: Tansania/Manyara, Region/Simanjiro, Distrikt/Merelani (Mererani)
Mineral: Merelaniit
Bild: 1480437673
Wertung: 9.5 (Stimmen: 2)
Lizenz: Creative Commons - Namensnennung (CC-BY) V.3.0
Merelaniite whiskers

Scanning electron microscope (SEM) images of samples taken from the holotype specimen. (a) Cluster of merelaniite whiskers with one notably larger cylinder, associated with graphite. (Sample 3666i-...

Copyright: John A. Jaszczak
Beitrag: Stefan 2016-11-29
Lokation: Merelani (Mererani) / Simanjiro, Distrikt / Manyara, Region / Tansania
Merelaniite, Stilbite, Graphite, Alabandite
Aufrufe (File:
1480436152
): 739
Merelaniite, Stilbite, Graphite, Alabandite
Whiskers of merelaniite, some showing an oscillatory variation in diameter, partly overgrown by stilbite crystals associated with small but very sharp graphite crystals. This was in a crevice in an 11-cm long crystal group of alabandite, and is part of the holotpe specimen of merelaniite. Locality: Merelani Hills, Lelatema Mts, Simanjiro District, Manyara Region, Tanzania; [http://www.mdpi.com/2075-163X/6/4/115]
Copyright: John A. Jaszczak; Beitrag: Stefan
Fundort: Tansania/Manyara, Region/Simanjiro, Distrikt/Merelani (Mererani)
Mineral: Merelaniit
Bild: 1480436152
Wertung: 10 (Stimmen: 1)
Lizenz: Nur zur Mineralienatlas-Projekt-Verwendung
Merelaniite, Stilbite, Graphite, Alabandite

Whiskers of merelaniite, some showing an oscillatory variation in diameter, partly overgrown by stilbite crystals associated with small but very sharp graphite crystals. This was in a crevice in an...

Copyright: John A. Jaszczak
Beitrag: Stefan 2016-11-29
Lokation: Merelani (Mererani) / Simanjiro, Distrikt / Manyara, Region / Tansania
Quartz crystal with inclusions of merelaniite
Aufrufe (File:
1480437563
): 432
Quartz crystal with inclusions of merelaniite
Optical photographs of (a) 2.8-cm-tall quartz crystal with inclusions of merelaniite whiskers, also associated with chabazite crystals; (b) close-up of (a) showing merelaniite, graphite and an unidentified fan-shaped phase at the left of the image (~8 mm wide field-of-view). (A. E. Seaman Mineral Museum collection DM 31315; ex. Simon Harrison collection.). John A. Jaszczak, Michael S. Rumsey, Luca Bindi, Stephen A. Hackney, Michael A.Wise, Chris J. Stanley and John Spratt
Copyright: John A. Jaszczak; Beitrag: Stefan
Fundort: Tansania/Manyara, Region/Simanjiro, Distrikt/Merelani (Mererani)
Mineral: Merelaniit
Bild: 1480437563
Wertung: 10 (Stimmen: 1)
Lizenz: Creative Commons - Namensnennung (CC-BY) V.3.0
Quartz crystal with inclusions of merelaniite

Optical photographs of (a) 2.8-cm-tall quartz crystal with inclusions of merelaniite whiskers, also associated with chabazite crystals; (b) close-up of (a) showing merelaniite, graphite and an unid...

Copyright: John A. Jaszczak
Beitrag: Stefan 2016-11-29
Lokation: Merelani (Mererani) / Simanjiro, Distrikt / Manyara, Region / Tansania
Merelaniit
Aufrufe (File:
1480437807
): 286
Merelaniit
Scanning electron microscope (SEM) images of samples taken from the holotype specimen. (a) Cluster of merelaniite whiskers with one notably larger cylinder, associated with graphite. (Sample 3666i-190i.); (b) Section of a merelaniite-graphite cluster showing well-formed graphite crystals (Sample 3666i-190h.); (c,d) Merelaniite whiskers showing partially un-wound layers. (Sample 3666-196a.); (e,f) Individual whiskers showing conical ends and undulating diameters (Samples 3666i 190d and 3666 196c). Images taken using a Hitachi S-4700 field-emission SEM (Hitachi, Tokyo, Japan). John A. Jaszczak, Michael S. Rumsey, Luca Bindi, Stephen A. Hackney, Michael A.Wise, Chris J. Stanley and John Spratt
Copyright: John A. Jaszczak; Beitrag: Stefan
Fundort: Tansania/Manyara, Region/Simanjiro, Distrikt/Merelani (Mererani)
Mineral: Merelaniit
Bild: 1480437807
Wertung: 10 (Stimmen: 1)
Lizenz: Creative Commons - Namensnennung (CC-BY) V.3.0
Merelaniit

Scanning electron microscope (SEM) images of samples taken from the holotype specimen. (a) Cluster of merelaniite whiskers with one notably larger cylinder, associated with graphite. (Sample 3666i-...

Copyright: John A. Jaszczak
Beitrag: Stefan 2016-11-29
Lokation: Merelani (Mererani) / Simanjiro, Distrikt / Manyara, Region / Tansania

Chemismus

Mineralstatus

Reihe/Gruppe/Serie/Folge

Bild ⇒ Analysedaten ⇒ Raman-Spektrum (1 Bilder gesamt)

Merelaniit representative Raman spectra
Aufrufe (File:
1480438157
): 329
Merelaniit representative Raman spectra
Representative Raman spectra, independently scaled and vertically shifted for clarity, from the surface of sample 3323, and from polished samples 3666ax2 and 3666cr2 using 633-nm and 785-nm incident radiation. The “3666cr2 middle” spectrum was taken from a region of the cross section shown in Figure 7 midway between the center and the surface. Spectra “3666ax2 rim” and “3666ax2 core” were taken from the longitudinal section of the whisker shown in Figure 6 from regions between the axis and the surface (rim), and from the brightly reflecting core, respectively. John A. Jaszczak, Michael S. Rumsey, Luca Bindi, Stephen A. Hackney, Michael A.Wise, Chris J. Stanley and John Spratt
Copyright: John A. Jaszczak; Beitrag: Stefan
Mineral: Merelaniit
Bild: 1480438157
Lizenz: Creative Commons - Namensnennung (CC-BY) V.3.0
Merelaniit representative Raman spectra

Representative Raman spectra, independently scaled and vertically shifted for clarity, from the surface of sample 3323, and from polished samples 3666ax2 and 3666cr2 using 633-nm and 785-nm inciden...

Copyright: John A. Jaszczak
Beitrag: Stefan 2016-11-29

Kristallstruktur 3D

Größere Darstellung öffnen

IMA-Gruppenzuordnungen


 
 
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P1

 
 
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P21/m

 
 
(Pb,Sn)12.5Sn5FeAs3S28
monoklin
 

 
 
Pb21.7Sn9.3Fe4.0Sb8.1S56.9
triklin
C1

 
 
Pb3Sn4FeSb2S14
triklin
 

 
 
Pb8Sn7Cu3(Bi,Sb)3S28
monoklin
 

 
 
Mo4Pb4VSbS15
triklin
C1, C1

 
 
Pb25.7Sn8.3Mn3.4Sb6.4S56.2
monoklin
C2/m (Q-slab), P21 (H-slab)

 
 
Pb8Bi10(S,Se)23
monoklin
P2/m

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Aktualität: 27. Mar 2024 - 16:43:33

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Cylindrit-Gruppe

Englisch

Cylindrite group

IDs

GUSID (Globale ID als Kurzform) dR1ntva8YEyeWCRWwOpJUg
GUID (Globale ID) B6671D75-BCF6-4C60-9E58-2456C0EA4952
Datenbank ID 8189