Results 61 to 70 of about 1,754 (181)
Meteoritics &Planetary Science, Volume 61, Issue 8, Page 2016-2047, August 2026.Abstract An unusual chondritic xenolith was found in two sequentially prepared thin sections of a sample from the Krymka (LL3.2) chondrite. The xenolith has a rounded, slightly deformed shape of about 5 mm in apparent diameter and is partially surrounded by a double rim made of an inner fine‐grained silicate‐rich rim and an outer sulfide‐rich rim.
Aelita Girich +6 more
wiley +1 more source
Yankuang ceshi, 2017 The Zhaojinggou Nb-Ta polymetallic deposit in Inner Mongolia is a newly discovered large rare metal ore deposit. The reserve of Nb-Ta oxides is more than 8200 tons.
GAO Yun +5 more
doaj +1 more source
Potassium isotopic compositions and exposure ages of evolved and silica‐rich achondrites
Meteoritics &Planetary Science, Volume 61, Issue 8, Page 2140-2162, August 2026.Abstract Some of the oldest igneous rocks in the Solar System include evolved and silica‐rich achondrites that originate from parent bodies less than 1000 km in diameter, referred to as planetesimals. While Earth was initially in a molten state and required continental crust formation and plate tectonics to generate andesite bulk compositions, evolved ...
Z. Vaci +9 more
wiley +1 more source
Atomic Simulations of Volatile Coverage on Silicate Surfaces
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Understanding how surface processes shape exosphere formation on airless bodies is limited by how surface properties influence the ejection of volatiles such as Na. Recent studies show that retention and release are sensitive to surface binding energy (SBE), motivating the need for SBE values as a function of mineral type and surface coverage.
Amanda Ricketts +7 more
wiley +1 more source
Kuangchan zonghe liyongThe fine-grained low-grade tail mud of the Yichun tantalum niobium ore contains 0.17% Li2O，0.007 1% Ta2O5，0.007 8% Nb2O5, and whiteness is 24.20%. Mineralogical studies indicate that tantalum-niobium minerals and lithium mica particles in the tailings ...
Qiangqiang WANG +5 more
doaj +1 more source
POLYCHROME CANCRINITE–VISHNEVITE OF ALKALI PEGMATITES OF THE KUROCHKIN LOG OCCURRENCE, VISHNEVYE MOUNTAINS OF THE URALS [PDF]
Минералогия, 2018 Polychrome cancrinite–vishnevite crystal was found in alkali nepheline-feldspar pegmatites of the Kurochkin Log occurrence from the Vishnevye Mountains in the Southern Urals.
V.A. Popov, V.I. Popova
doaj
Results in EngineeringRubidium (Rb) and cesium (Cs), as rare alkali metals, play a critical role in high-tech industries. However, their efficient extraction from associated mineral resources is challenging, especially in lithium-bearing clays due to fine-grained ...
Keqiang Chen +7 more
doaj +1 more source
Fabrication of electrical porcelain insulator from ceramic raw materials of Oromia region, Ethiopia
Heliyon, 2019 Electrical porcelain insulator was fabricated from local ceramic raw materials, Bombowha kaolin/clay, Arero feldspar and Arero quartz available in Ethiopia.
Andualem Merga +4 more
doaj +1 more source
Evolution of chemically induced cracks in alkali feldspar: thermodynamic analysis. [PDF]
Phys Chem Miner, 2022 Abart R +7 more
europepmc +1 more source
Brazilian Journal of Geology: This paper concerns the study of petrography, mineral chemistry and geochronology of skarns generated at the contact of marbles of the Paraíba do Sul Complex with felsic and metamafic dykes in the southern Espírito Santo State.
Raissa Beloti de Mesquita +4 more
doaj +1 more source