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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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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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New Mineral Discoveries Reported in European Journal of Mineralogy

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The latest issue of the European Journal of Mineralogy reports a newly identified silver‑tellurium sulfosalt, experimental insights on lithium and boron isotope behavior in pegmatites, and updates from IMA’s Commission on New Minerals.

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Lithium Isotope Fractionation Revealed in Pegmatite Fluid Experiments

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Researchers demonstrate lithium and boron transfer via fluid phases during late‑stage pegmatite formation, with heavy lithium preferentially enriching the fluid.

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New Silver Mineral Discovered in China's Qinling Mountains

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Scientists have identified a new silver‑antimony‑tellurium sulfosalt called fengruiite from the Haopinggou deposit in eastern Qinling, China.

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New Tool Lets U.S. Hobbyists Identify 120+ Rocks Instantly

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Rock Chasing launches a tool that instantly identifies more than 120 rocks and minerals in the United States.

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IMA Commission Releases Newsletter 92 on Mineral Naming

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The International Mineralogical Association’s CNMNC issued its 92nd newsletter, outlining updated guidelines for proposing new minerals without introducing any new species.

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Live Bridal Asia Shows Set for Mumbai & Rajkot

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Live Bridal Asia will hold shows in Mumbai on Aug 15‑16 and in Rajkot from Aug 20‑23.

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New Experiment Illuminates Lithium Transport in Pegmatite Formation

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Researchers demonstrate that lithium and boron migrate via fluid phases between melts at low rates, with heavier ^7Li accumulating in the fluid during late‑stage pegmatitic growth.

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Fengruiite: New Silver‑Tellurium Sulfosalt Mineral Found in Chinese Deposit

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Researchers discovered a novel Ag–Sb–Te sulfosalt mineral, Fengruiite, revealing how tellurium helps concentrate silver in ore deposits.

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Water Retention Revealed in Mantle Xenoliths

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A new study shows mantle xenoliths preserve deep water signatures via hydrous‑point‑defect pyroxenes.

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IMA Commission Releases Newsletter 92 on New Mineral Standards

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The IMA’s CNMNC published its 92nd newsletter detailing updates on mineral nomenclature and classification.

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New Rare‑Earth Mineral Xianhuaite Discovered at China's Bayan Obo Deposit

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Scientists identify xianhuaite-(Ce), a new rare‑earth mineral containing potassium, cerium, and niobium found at the Bayan Obo deposit in northern China.

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