Peridot's yellowish-green color is not only produced by \rmFe^2+ Fe^ 2+ but is also
influenced by background, observer, illuminance, and color temperature of the light source …

Previous research indicated that the peridot's color is dominated by the selective absorption
of visible light caused by ferrous ion, the hue angle of which is in an inverse ratio of the …

Zircon (ZrSiO4) crystallizes in the tetragonal system and is a common and widely distributed
accessory mineral in most types of igneous and metamorphic rocks. Zircon of gem quality …

Peridot from Neogene olivine-bearing basalt in the Yiqisong District of Jilin Province, China,
and from North Korea are available in the global gem market. We characterised 100 stones …

This case study examines the use of a consumer-grade unmanned aerial vehicle (UAV, or
drone) and geospatial analysis for peridot exploration. Gem-quality olivine occurs in …

There are tens of typical volcano-related relics such as craters and waterfalls in the Pleiku
volcanic plateau, Gia Lai province however, Gia Lai's tourism has underdeveloped. Thus it is …