High-temperature inter-mineral potassium isotope fractionation: implications for K-Ca-Ar chronology. [PDF]
Wilson Kuhnel W +7 more
europepmc +1 more source
Thermal dependence of colour and ultraviolet luminescence emission in amazonite feldspar
Amazonite is a natural blue-green coloured perthitic Pb-bearing feldspar, structurally hydrous occuring in some pegmatite ore deposits. The irradiation-induced colour in amazonite can develop only in K-feldspar having both, structurally bound H2O and Pb impurities.
García-Guinea, Javier +3 more
openaire +2 more sources
Photographed by Ron Wolf.Columnar smoky quartz crystal with pale blue amazonite, Crystal Peak area, Teller County ...
Wolf, Ron
core
Nascent craft specialization in the Pre-Pottery Neolithic A? Bead making at Shubayqa 6 (northeast Jordan). [PDF]
Thuesen MB +3 more
europepmc +1 more source
Ecological flexibility and adaptation to past climate change in the Middle Nile Valley: A multiproxy investigation of dietary shifts between the Neolithic and Kerma periods at Kadruka 1 and Kadruka 21. [PDF]
Le Moyne C +6 more
europepmc +1 more source
Geochemistry and Cosmochemistry of Potassium Stable Isotopes. [PDF]
Wang K +5 more
europepmc +1 more source
Correlation between the Radiation Induced Colours and the OH-stretching Vibrations of Amazonite
Abstract The changes of colour and the OH-stretching vibrations of amazonites (K-Feldspar) on irradiation have been investigated. It is concluded that the changes are caused by radiation induced crystal defects.
openaire +1 more source
The goal of this project was to find the identity and research an unknown mineral throughout the semester. The mineral which I received was Amazonite, which is a variation of microcline feldspar.
Six, Brendan
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The Evolution of Late Intrusive Phases in the Georgeville Granite, Nova Scotia [PDF]
New exposures of the post-orogenic, Georgeville granite reveal the presence of three distinct late-stage phases. The Neoproterozoic pluton is exposed in Georgeville, Nova Scotia, along the Northumberland Strait. Its intrusive age is inferred from a 579.8
Archibald, Donnelly B.
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The toxic influence and biodegradation of carbon nanofibers in freshwater invertebrates of the families Gammaridae, Ephemerellidae, and Chironomidae. [PDF]
Chaika V +15 more
europepmc +1 more source

