La ricerca ha trovato 22874 risultati

da Marco E. Ciriotti
dom 22 lug, 2018 11:01
Forum: Sistematica e classificazione
Argomento: IMA 2017-014 = sharyginite
Risposte: 0
Visite : 22

IMA 2017-014 = sharyginite

Referenza: ▪ Juroszek, R., Krüger, H., Galuskina, I., Krüger, B., Jeżak, L., Ternes, B., Wojdyla, J., Krzykawski, T., Pautov, L., Galuskin, E. (2018): Sharyginite, Ca3TiFe2O8, A New Mineral from the Bellerberg Volcano, Germany. Minerals , 8 , 308; doi.org/10.3390/min8070308. Abstract The new mineral...
da Marco E. Ciriotti
sab 21 lug, 2018 16:28
Forum: Sistematica e classificazione
Argomento: IMA 2018-010 = eddavidite
Risposte: 2
Visite : 50

Re: IMA 2018-010 = eddavidite

A dir poco inquietante... è in un meteorite?
No, in una miniere americana nei pressi di Bisbee. L'associazione è con malachite e cuprite e si presenta in cubetti neri.
da Marco E. Ciriotti
sab 21 lug, 2018 16:26
Forum: Sistematica e classificazione
Argomento: IMA 2018-020 = stefanweissite
Risposte: 0
Visite : 30

IMA 2018-020 = stefanweissite

Il nome di questa nuova specie (IMA 2018-020 = stefanweissite) è sul web.
da Marco E. Ciriotti
sab 21 lug, 2018 15:58
Forum: Sistematica e classificazione
Argomento: IMA 2018-010 = eddavidite
Risposte: 2
Visite : 50

IMA 2018-010 = eddavidite

Il nome di questa nuova specie cubica (IMA 2018-010 = eddavidite) è su alcune pagine del web. La formula è Pb2Cu12O15Br2.
da Marco E. Ciriotti
ven 20 lug, 2018 11:23
Forum: Sistematica e classificazione
Argomento: Foreword to the special issue arising from the international conference “Tourmaline 2017”
Risposte: 0
Visite : 30

Foreword to the special issue arising from the international conference “Tourmaline 2017”

Referenza: ▪ Cempírek, J. & Novak, M. (2018): Foreword to the special issue arising from the international conference “Tourmaline 2017”. Journal of Geosciences , 63 , 75-76. Abstract: Twenty years ago (June 1997), the first Tourmaline Conference was organized by Milan Novák (Moravian Museum, Brno, C...
da Marco E. Ciriotti
ven 20 lug, 2018 11:21
Forum: Sistematica e classificazione
Argomento: Tourmaline studies through time: contributions to scientific advancements
Risposte: 0
Visite : 13

Tourmaline studies through time: contributions to scientific advancements

Referenza: ▪ Henry, D.J. & Barbara L. Dutrow, B.L. (2018): Tourmaline studies through time: contributions to scientific advancements. Journal of Geosciences , 63 , 77-98. Abstract: Tourmaline studies have been an integral part of science and scientific exploration for centuries and continue to flour...
da Marco E. Ciriotti
ven 20 lug, 2018 11:19
Forum: Sistematica e classificazione
Argomento: Tourmaline compositions and textures: reflections of the fluid phase
Risposte: 0
Visite : 13

Tourmaline compositions and textures: reflections of the fluid phase

Referenza: ▪ Dutrow, B.L. & Henry, D.J. (2018): Tourmaline compositions and textures: reflections of the fluid phase. Journal of Geosciences , 63 , 99-110. Abstract: Tourmaline uniquely records evidence of its geologic history in its composition and, if properly decoded, provides insight into the ge...
da Marco E. Ciriotti
ven 20 lug, 2018 11:16
Forum: Sistematica e classificazione
Argomento: Secondary blue tourmaline after garnet from elbaite-subtype pegmatites
Risposte: 0
Visite : 15

Secondary blue tourmaline after garnet from elbaite-subtype pegmatites

Referenza: ▪ Buřival, Z. & Novak, M. (2018): Secondary blue tourmaline after garnet from elbaite-subtype pegmatites; implications for source and behavior of Ca and Mg in fluids. Journal of Geosciences , 63 , 111-122. Abstract: Secondary blue tourmaline (schorl to Fe-rich fluor-elbaite to very rare F...
da Marco E. Ciriotti
ven 20 lug, 2018 11:13
Forum: Sistematica e classificazione
Argomento: Mineralogy of Ti-bearing, Al-deficient tourmaline assemblages associated with lamprophyre dikes near O’Grady Batholith
Risposte: 0
Visite : 15

Mineralogy of Ti-bearing, Al-deficient tourmaline assemblages associated with lamprophyre dikes near O’Grady Batholith

Referenza: ▪ Scribner, E.D., Groat, L.A., Cempírek, J. (2018): Mineralogy of Ti-bearing, Al-deficient tourmaline assemblages associated with lamprophyre dikes near the O’Grady Batholith, Northwest Territories, Canada. Journal of Geosciences , 63 , 123-135. Abstract: Calc-alkaline lamprophyre dikes a...
da Marco E. Ciriotti
ven 20 lug, 2018 11:10
Forum: Sistematica e classificazione
Argomento: Crystal-chemical autopsy of octahedral sites in Na-dominant tourmalines
Risposte: 0
Visite : 13

Crystal-chemical autopsy of octahedral sites in Na-dominant tourmalines

Referenza: ▪ Bačík, P. (2018): The crystal-chemical autopsy of octahedral sites in Na-dominant tourmalines: octahedral metrics model unconstrained by the Y,Z-site disorder assignment. Journal of Geosciences , 63 , 137-154. Abstract: The structure of tourmaline-supergroup minerals includes two types ...
da Marco E. Ciriotti
ven 20 lug, 2018 9:59
Forum: Sistematica e classificazione
Argomento: Chemical and spectroscopic characterization of tourmalines from the Mata Azul pegmatitic field, Central Brazil
Risposte: 0
Visite : 16

Chemical and spectroscopic characterization of tourmalines from the Mata Azul pegmatitic field, Central Brazil

Referenza: ▪ Silva, S.F., Moura, M.A., de A. Queiroz, H., José D. Ardisson, J.D. (2018): Chemical and spectroscopic characterization of tourmalines from the Mata Azul pegmatitic field, Central Brazil. Journal of Geosciences , 63 , 155-165. Abstract: This study characterizes natural black, blue, dark...
da Marco E. Ciriotti
ven 20 lug, 2018 9:55
Forum: Sistematica e classificazione
Argomento: Determination of ferrous-ferric iron contents in tourmaline using synchrotron-based XANES
Risposte: 0
Visite : 15

Determination of ferrous-ferric iron contents in tourmaline using synchrotron-based XANES

Referenza: ▪ Levy, E.A., Henry, D.J., Roy, A., Dutrow, B.L. (2018): Determination of ferrous-ferric iron contents in tourmaline using synchrotron-based XANES. Journal of Geosciences , 63 , 167-174. Abstract: The complex geochemistry of tourmaline makes it an important tool in determining its formati...
da Marco E. Ciriotti
ven 20 lug, 2018 9:51
Forum: Sistematica e classificazione
Argomento: Magmatic and metamorphic evolution of tourmaline-rich rocks of the Sopron area, Eastern Alps
Risposte: 0
Visite : 12

Magmatic and metamorphic evolution of tourmaline-rich rocks of the Sopron area, Eastern Alps

Referenza: ▪ Spránitz, T., Józsa, S., Kovács, Z., Váczi, B., K Török, K. (2018): Magmatic and metamorphic evolution of tourmaline-rich rocks of the Sopron area, Eastern Alps. Journal of Geosciences , 63 , 175-191. Abstract: Tourmaline-rich pegmatitic orthogneisses, tourmalinites, kyanite-chlorite-mu...
da Marco E. Ciriotti
ven 20 lug, 2018 9:47
Forum: Sistematica e classificazione
Argomento: Detrital tourmalines from Proterozoic metasedimentary rocks in the Picuris Mountains, New Mexico
Risposte: 0
Visite : 12

Detrital tourmalines from Proterozoic metasedimentary rocks in the Picuris Mountains, New Mexico

Referenza: ▪ Farnsworth-Pinkerton, S., McMillan, N.J., Dutrow, B.L., Henry, D.J. (2018): Provenance of detrital tourmalines from Proterozoic metasedimentary rocks in the Picuris Mountains, New Mexico, using Laser-Induced Breakdown Spectroscopy. Journal of Geosciences , 63 , 193-198. Abstract: Tourma...
da Marco E. Ciriotti
ven 20 lug, 2018 9:43
Forum: Sistematica e classificazione
Argomento: Provenance of Jurassic-Cretaceous siliciclastic rocks from the northern Siberian Craton: an integrated mineral study
Risposte: 0
Visite : 12

Provenance of Jurassic-Cretaceous siliciclastic rocks from the northern Siberian Craton: an integrated mineral study

Referenza: ▪ Vereshchagin, O.S., Khudoley, A.K., Ershova, V.B., Prokopiev, A.V., Schneider, G.V. (2018): Provenance of Jurassic-Cretaceous siliciclastic rocks from the northern Siberian Craton: an integrated heavy mineral study. Journal of Geosciences , 63 , 199-213. Abstract: The U-Pb ages of detri...