Results 21 to 30 of about 399 (207)

Characterization of Hydrous Mineral Inclusions in Ruby and Sapphire by Infrared Spectroscopy and Microscopic Confocal Laser Raman Spectroscopy

open access: yesYankuang ceshi, 2019
BACKGROUND There are water molecules and hydrous mineral inclusions in natural ruby and sapphire. The hydrous minerals disappear easily after heat treatment, which causes the physical and chemical properties of ruby and sapphire to change.
NING Pei-ying   +6 more
doaj   +1 more source

Production of Radioactive Gemstones

open access: yes, 2023
The possibility of making precious stones from radioactive waste is being considered. Vitrified and cemented radioactive waste (RW) is considered as an artificial rock belonging to aluminosilicates and calcites. Two methods are proposed for the manufacture of radioactive gemstones from RW and their subsequent storage with the possibility of sale ...
openaire   +2 more sources

ANALYSIS OF MINERALS IN CEMPAKA-MADU GEMSTONE FROM ACEH INDONESIA BY USING XRF

open access: yesJurnal Natural, 2018
. Cempaka-madu is a local name for one kind of gemstone from Aceh province in Indonesia. It is so attractive and its color is dark-orange. We have utilized X-Ray Florescent (XRF) to study these cempaka-madu gemstones from Aceh Tengah and Nagan Raya ...
Ismail ., Akmal Nizar, Mursal .
doaj   +1 more source

NFT Certificates and Proof of Delivery for Fine Jewelry and Gemstones

open access: yesIEEE Access, 2022
Fine jewelry is a unique class of ornaments composed of precious metals and gemstones. Premium-grade metals such as gold, platinum, and sliver, and gemstones such as pearls, diamonds, rubies, and emeralds are used use to make fine jewelry.
Noura Alnuaimi   +5 more
doaj   +1 more source

Engineered biopolymeric scaffolds for chronic wound healing

open access: yesFrontiers in Physiology, 2016
Skin regeneration requires the coordinated integration of concomitant biological and molecular events in the extracellular wound environment during overlapping phases of inflammation, proliferation, and matrix remodeling. This process is highly efficient
Laura E Dickinson, Sharon Gerecht
doaj   +1 more source

Risk Assessment of Heavy Metals in Chromolaena odorata Collected Around Gemstone Mining Site in Ijero-Ekiti

open access: yesBiology, Medicine & Natural Product Chemistry, 2021
In Nigeria, like many developing nations, the resultant effect of land degradation: aggravated soil erosion, flood disasters, salinization or alkalisation, and the desertification have been a major public health concern for the past decades, however this
Efe Sylvanus Abiya   +2 more
doaj   +1 more source

Knowledge, attitudes and practices regarding gemstone therapeutics in a selected adult population in Pakistan

open access: yesBMC Complementary and Alternative Medicine, 2009
Background Gemstones have been in use as part of alternative and complementary medicine for years. However, our understanding of the perceived healing powers of gemstones is limited.
Qidwai Waris   +2 more
doaj   +1 more source

Rat behavior and dopamine release are modulated by conspecific distress

open access: yeseLife, 2018
Rats exhibit ‘empathy’ making them a model to understand the neural underpinnings of such behavior. We show data consistent with these findings, but also that behavior and dopamine (DA) release reflects subjective rather than objective evaluation of ...
Nina T Lichtenberg   +16 more
doaj   +1 more source

Mineralogical And Gemological Characteristics Of Metaophiolite Hosted Corundum (Malatya-Türkiye)

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
The corundum is found in the rocks of the Berit metaophiolite in Eastern Anatolia, near Doğanşehir a province of Malatya. Metaophiolitic rocks consist mainly of garnet metagabbro, granulite, amphibolite, mylonitic amphibolite, garnet amphibolite ...
Fikret İşler   +5 more
doaj   +1 more source

"Hopovo" gemstone occurrence (Fruška gora) [PDF]

open access: yesTehnika, 2020
This study presents geological, mineralogical, and gemological characteristics of gemstone deposit (silica and carbonate minerals) that occur in Mesozoic Fruška gora ultramafites in the vicinity of Hopovo Monastery.
Miladinović Zoran Ž.
doaj  

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