Eric Rasmussen’s Post

(Fig. 1. Boojumite crystals) • The new minerals boojumite and kennygayite were found in the Redmond mine, Haywood County, North Carolina, USA, where they occur in a highly unusual secondary assemblage that comprises a variety of rare Pb-Zn-Cu sulfates, thiosulfates, and carbonates. • The structures of boojumite and kennygayite are both based on chains of edge-sharing oxocentered OPb4 tetrahedra. The chain in boojumite is sinuous, whereas that in kennygayite is zig-zag. • The ideal formula of boojumite is Pb8O4(OH)2(S2O3)3. • The ideal formula of kennygayite is [Pb4O2(OH)2](SO4). New Minerals from the Redmond Mine, North Carolina, USA: VI. Boojumite and Kennygayite, Two New Minerals with Structures Based on Chains of Oxocentered OPb4 Tetrahedra A.R. Kampf, J.B. Smith, J.M. Hughes, C. Ma, & C. Emproto https://lnkd.in/dug9xCG4

$PEX.V identifies six-kilometre-long copper-gold porphyry trend at Chuchi. The BP Zone and the Digger Zone have significant, untested potential for porphyry copper-gold mineralization at depth as many of the historic drill holes were shallow, less than 150 m in depth, and ended in mineralization. https://lnkd.in/gh_fx-gM

Open Access: The Chain of Processes Forming Porphyry Copper Deposits.. Heinrich (2024): Porphyry-related mineral deposits are giant geochemical anomalies in the Earth’s crust with orders-of-magnitude differences in the content and proportion of the three main ore metals Cu, Au, and Mo. Deposit formation a few kilometers below surface is the product of a chain of geologic processes operating at different scales in space and time. This paper explores each process in this chain with regard to optimizing the chances of forming these rare anomalies. https://lnkd.in/gbDcn5-p

This reminds of Mr. Yawas Dekba at PNG University of Technology, Mining Engineering Department, 2015. Mineral Geology Subject.

Mineral Matters # 304 - Minerals of the East Eifel, Germany - Part 2 #mineralmatters, #minerals

Terrific lithium project in WA, and one that has prospered through the recent commodity price fluctuations. It shows once again that a good management team with a sharp focus on strategy is a winning combination. #lithium #batterymetals #westernaustralia #mining

QMines Limited (ASX:QML) executive chairman Andrew Sparke joins Jonathan Jackson in the Proactive studio to discuss the identification of high-grade #gold rock chip samples from historical data at the Mt Chalmers project. The bonanza samples were found in the Cawarral and Mt Wheeler Goldfields, approximately 6 kilometres northeast of the historical Mt Chalmers #copper and gold mine. Notable rock chip sample grades include 256 g/t, 157 g/t, 89.4 g/t, 80.95 g/t, and 156 g/t gold. Historical production figures from small-scale mines in the area include 2,973 ounces at 62 g/t gold from Galawa Mine, 9,098 ounces at 37 g/t from Annie Mine and 3,900 ounces at 42 g/t from Last Chance Mine. Watch at #Proactive #ProactiveInvestors #BonanzaGold #GoldMining #GoldStocks #MiningAustralia https://lnkd.in/eWTcwiaf

Lots of upcoming catalysts: ⛏ 188,000+ metres of exploration planned in 2024 ⛏ 1st #Silver pour at First Mint in Q1 2024 ⛏ Resource expansion potential at Ermitaño ⛏ Voicing #silver as a critical metal #KeithNeumeyer First Majestic Silver Corp. #BuyPhysical #TripleDigitSilver #AG #FR.TO

This year's World Copper Conference starts with a session titled "Sulphide leaching technologies: the holy grail to unlock supply" Aptly worded description of why I'm so excited about Ceibo, which is doing exactly that, on meaningful scale with real ores, across mineralogies and with incredible results. https://lnkd.in/gFs8aWMC

zinc sulphides got the x-ray crystallography technique started and Cr-spinel started the petrogenesis game AKA indicator mineral studies.