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Rocks, minerals & gems By Ren

A closer look at the ground we stand on.

Fresh finds, mineral science, gems, and the stories behind the specimens — for curious collectors and lifelong learners.

02 / The archive

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Fengruiite Discovery Sheds Light on Silver Concentration

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A newly identified silver‑tellurium sulfosalt, Fengruiite, offers fresh insight into how nature concentrates silver.

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New Mineral Species Reported by European Journal of Mineralogy

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Three new minerals were published—exsolution‑texture insights, a new arsenate, and a silver‑rich sulfosalt.

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Upcoming Gem & Mineral Shows Across U.S., August‑September 2026

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From New York to Utah, eight shows run late summer and early fall, offering displays, workshops, and networking for collectors.

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Exsolution Textures Reveal Vanadium Extraction Challenges

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A new study shows how microscopic Fe–Ti oxide textures affect vanadium recovery from Bushveld Complex ores.

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Fengruiite: New Silver–Tellurium Sulfosalt Discovered in China

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Researchers identified a new mineral, Fengruiite, at China's Haopinggou deposit, showing how tellurium helps concentrate silver.

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Belmonteite Discovered in Italy’s Ligurian Manganese Ores

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Scientists have isolated a new calcium‑manganese arsenate hydroxide named belmonteite from ore deposits near Savona, shedding light on As‑rich fluid processes.

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Lithium‑Boron Transport Rates Studied via Isotope Fractionation

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Researchers quantified how lithium moves between melts during pegmatite growth using isotope tracing.

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European Journal Reports Three New Minerals and Process Insight

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The latest issue of the European Journal of Mineralogy presents new minerals—Belmonteite from Italy and Fengruiite from China—and a study showing how Fe–Ti oxide exsolution textures influence vanadium recovery.

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Exsolution Textures Dictate Vanadium Recovery from Bushveld Ores

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Micro‑scale Fe–Ti oxide textures control how efficiently vanadium is extracted by crushing and pre‑concentration methods.

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New Experiment Illuminates Lithium Transport in Pegmatites

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Scientists show lithium isotopes preferentially move into fluid phases during late‑stage pegmatite formation.

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New Minerals Belmonteite and Fengruiite Discovered

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Scientists report two new minerals from Italy and China.

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New silver‑rich mineral found in Chinese ore deposit

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A new Ag–Sb–Te sulfosalt named fengruiite was identified at the Haopinggou deposit, while researchers tested lithium and boron transport in pegmatitic systems and released an IMA commission newsletter.

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