Pegmatite Geochemistry: An Insight A sample from an active lithium mine (~3% Li₂O) was analyzed using a handheld XRF and gave the following results: Rb = 4400 ppm, Cs = 263 ppm, Ta = 0 ppm, Sn = 50 ppm, Nb = 6 ppm. Despite coming from a lithium-rich zone, the Ta, Sn, and Nb values are quite low compared to other LCT (Lithium-Cesium-Tantalum) pegmatites observed in Nassarawa State of Nigeria. This suggests that: 1. The Li enrichment may have occurred independently of Ta–Nb–Sn mineralization, poss
Pegmatite Geochemistry: An Insight A sample from an active lithium m…
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Granite or Pegmatite? Picked from a field site, this coarse-grained rock shows pink feldspar crystals with shiny flakes of mica, classic features of a granitic material. The pink hue is from potassium feldspar (microcline/orthoclase), while the sparkle comes from muscovite and biotite. Such rocks form from slow cooling of magma deep in the crust, often marking continental crustal zones that may host rare metals or gem minerals in pegmatitic varieties. Possible rock type: Muscovite Granite or Peg
Granite or Pegmatite? Picked from a field site, this coarse-grained roc…
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My very first experience seeing and mining a pegmatite was very exciting for me 💛 I knew little to nothing about any if this stuff at the time, but I was told that this treasure-laden rock type was rare where I lived back on the West coast, and that I should savor the experience. Hard work, especially for someone who hadn’t ever swung a sledge onto a chisel into rock until that day, but every bit worth the effort ✨ I don’t have many videos or photos of my finds from that day, but here’s an old
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Pegmatite, an igneous rock, hosts precious gems like emeralds, tourmalines, and aquamarines. Their large grains are rich in minerals, formed in specific conditions where magma cools slowly, organizing crystals into gem-filled formations. #Pegmatite #IgneousRock #Emeralds #Tourmalines #Aquamarines #Gems | Mineral Gemstones
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4.4K views · 92 reactions | Pegmatite Geochemistry: An Insight A...
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