Mineralienatlas - Fossilienatlas
Cylindrit-Gruppe (Cylindrite group) |
Bilder (96 Bilder gesamt)
Aufrufe (File: ): 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 |
Aufrufe (File: ): 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 |
Aufrufe (File: ): 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 |
Aufrufe (File: ): 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 |
Aufrufe (File: ): 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 |
Aufrufe (File: ): 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)
Aufrufe (File: ): 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
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Mineralhändler
IDs
GUSID (Globale ID als Kurzform) | dR1ntva8YEyeWCRWwOpJUg |
GUID (Globale ID) | B6671D75-BCF6-4C60-9E58-2456C0EA4952 |
Datenbank ID | 8189 |