Results 41 to 50 of about 305 (130)

Combined micro-PIXE facility and monochromatic cathodoluminiscense spectroscopy applied to colored minerals of natural stones: an example from amazonite.

, 2005
Quantitative micro-PIXE and cathodoluminescence spectra obtained for amazonite crystals from Malawi and Brazil granitoids, in order to check the trace elements presumably responsible for their color.
Fedi M, Cossio R, Borghi A, Massi M, Giuntini L, Vaggelli G, Fiora L, Olmi F   +7 more
core  

A Spectroscopic and Chemical Study of the Coloration of Feldspars by Irradiation and Impurities, Including Water [PDF]

, 1984
Natural smoky color or smoky color induced by ionizing radiation develops only in potassium feldspars (KAlSi3O8) free of water bound in the feldspar structure. Neither fluid inclusion water nor ≡SiOH have an effect.
Hofmeister, Anne Marie
core   +1 more source

Long-distance trade in the Middle Chalcolithic of the southern Levant: The case of the olivine beads from Tel Tsaf, Jordan Valley, Israel. [PDF]

PLoS One, 2022
Rosenberg D, Elkayam Y, Garfinkel Y, Klimscha F, Vučković V, Weiss Y.   +5 more
europepmc   +1 more source

Microcline var. amazonite

Photographed by Ron Wolf.Milky light blue amazonite (variety of microcline), Lake George intrusive center, near Woodland Park, Teller County ...
Wolf, Ron
core  

Paragenesis and mineral-chemistry of amazonites of Valença, Northern Portugal [PDF]

, 2014
Na região de Valença ocorrem pegmatitos miarolíticos intra e exo-graníticos portadores de amazonites verdes, verdeazuladas e enrubescidas (microclinas róseas).
Ferreira, Juliana, Gomes, C. Leal
core   +2 more sources

Threads of memory: Reviving the ornament of a dead child at the Neolithic village of Ba`ja (Jordan). [PDF]

PLoS One, 2023
Alarashi H, Benz M, Gresky J, Burkhardt A, Fischer A, Gourichon L, Gerlitzki M, Manfred M, Sakalauskaite J, Demarchi B, Mackie M, Collins M, Odriozola CP, Garrido Cordero JÁ, Avilés MÁ, Vigorelli L, Re A, Gebel HGK.   +17 more
europepmc   +1 more source

Amazonite

Photographed by Ron Wolf.Blocky crystals of dull pale blue amazonite, Lake George intrusive center, Teller County ...
Wolf, Ron
core  

A MINERALOGICAL STUDY OF SOME MYCENAEAN SEALS EMPLOYING MOBILE RAMAN MICROSCOPY [PDF]

, 2010
The National Archaeological Museum in Athens is the largest archaeological museum in Greece, and one of the most important museums in the world, devoted to Ancient Greek art and history.
Kougemitrou, I., Economou, G., Smith, D.C., Konstantinidi-Syvridi, E., Perraki, M.   +4 more
core  

Armateur. Evénements de mer. Avaries communes. Déclaration. Nécessité

, 2001
International audience(Com. 29 mai 2001, Bull. civ. IV, n° 102, Sté Orient Overseas Container Ligne Ltd. c/ Cie Réunion européenne, Navire « Neptune Amazonite »
Delebecque, Philippe
core   +1 more source

Amazonite with cleavelandite

Photographed by Ron Wolf.Blocky pale blue amazonite occurring with whate cleavelandite, Crystal Peak area, Teller County ...
Wolf, Ron
core