Results 11 to 20 of about 8,457 (259)

A first look at phototransferred thermoluminescence of rose quartz

Radiation Measurements
We report a preliminary study of phototransferred thermoluminescence (PTTL) induced by 470 nm light source in rose quartz. The glow curve corresponding to 1 Gy consists of five peaks at 76, 115, 180, 290 and 423 °C labelled I through V in that order.
M C S Nunes, E M Yoshimura, N M Trindade   +2 more
exaly   +3 more sources

Fibrous nanoinclusions in massive rose quartz: The origin of rose coloration

American Mineralogist, 2001
Pink nanofibers were extracted from rose quartz from 29 different pegmatitic and massive vein localities throughout the world. Their width varied from 0.1 to 0.5 μm. On the basis of optical absorption spectra of the fibers and the initial rose quartz, we
Chi Ma, George R Rossman
exaly   +3 more sources

A trapped-hole center causing rose coloration of natural quartz

Zeitschrift Fur Kristallographie - Crystalline Materials, 1983
In rose-colored natural quartz crystals two new hole centers were detected and analyzed by electron paramagnetic resonance (EPR). A hole center with characteristic doublet and sextet hyperfine structures was identified as an O− ion bridging between a ...
D. Maschmeyer, G. Lehmann
exaly   +4 more sources

Study on the Component and Distribution Characteristics of Needle-like Inclusions in Rose Quartz

Yankuang ceshi, 2018
BACKGROUND The needle-like inclusions in rose quartz are considered to be rutile or dumortierite, and their orientation is related to the c-axis. However, there is no consensus on this statement.
HU Zhe, GUO Ying
doaj   +2 more sources

rose quartz

, 2014
exaly   +3 more sources

Processing of phosphorites and additives with researching their thermodynamical properties [PDF]

E3S Web of Conferences, 2023
In this article, scientific research on the production of thermophosphate fertilizers was carried out on the basis of thermo-alkaline activation of Central Kyzylkum waste phosphorite with mineralized mass and alkali metal salts, namely NaCl, KCl, Na2SO4,
Akhtamova Maftuna, Temirov Uktam, Khurramov Navruzbek, Shukurov Azim, Karshiev Bekhzod   +4 more
doaj   +1 more source

Fibrous nanoinclusions in massive rose quartz: HRTEM and AEM investigations

American Mineralogist, 2002
Pink fibrous crystals within massive rose quartz from localities in California, South Dakota, Brazil, Madagascar, and Namibia were examined with high-resolution transmission electron microscopy (HRTEM) and analytical electron microscopy (AEM). This study
Rossman, George R., Ma, Chi, Goreva, Julia S.   +2 more
core   +2 more sources

Structural and Petrographic Study of Crystalline Rocks in Part Of Oban Massif, SouthEastern Nigeria

Journal of Applied Sciences and Environmental Management, 2022
The study aims at differentiating lithologic units, general structural trends and orogenic implications of crystalline rocks within part of Oban Massif, Southeastern Nigeria.
G.E. Ubit, I.M. Ibanga, N.E. Bassey, I.J. Inim   +3 more
doaj   +1 more source

Effect of the Release of Gravel Elements on Soil Nutrients and Jujube Fruit Yield under Wet-and-Dry Cycles

Agronomy, 2022
This study sought to evaluate the potential of mulched gravel to release nutrients in the field by conducting trials with three variations of wet-and-dry cycling of the soil beneath gravel mulch and bare soil. The results revealed that quartz, muscovite,
Qiaoling Liu, Yangyang Li, Wangcheng Li, Qikun Su, Bo Ma, Min Mu, Zhenjiang Jia, Guangxing Zhao   +7 more
doaj   +1 more source

Genesis of the Xifeng Low-Temperature Geothermal Field, Guizhou, SW China: Constrains From Geology, Element Geochemistry, and D-O Isotopes

Frontiers in Earth Science, 2021
The Xifeng geothermal field is located in the Yangtze Craton, SW China, and is one of the most representative low-temperature geothermal fields in China.
Yanyan Li, Yanyan Li, Ji Dor, Ji Dor, Chengjiang Zhang, Guiling Wang, Guiling Wang, Baojian Zhang, Baojian Zhang, Fangfang Zhang, Yifei Xing, Yifei Xing   +11 more
doaj   +1 more source