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
Pegmatite, an igneous rock, hosts precious gems like emeralds, tour…
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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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For all Himalayan pegmatite crystal lovers out there 🔮✨ Throwback to 2023 — when this breathtaking XL Quartz cathedral cluster was unearthed from the majestic peaks of Gilgit-Baltistan. Standing proudly on its snowy albite matrix, this specimen showcases towering cathedral crystals rising together in perfect harmony — a true “cathedral” of nature’s design. Each termination reflects the purity and calm energy of the Himalayas — a masterpiece that reminds us how extraordinary the Earth’s creation
For all Himalayan pegmatite crystal lovers out there 🔮✨ Throwback to 2…
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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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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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Betafite - Ambatofotsy pegmatite, Mahavelona, Soavinandriana Dist., Itasy, Madagascar More info: Betafite is a strange and complex brew of uranium, titanium, and niobium, a member of the Pyrochlore Group of species. Crystals from Madagascar helped define the species and understand the geology of how these complex minerals form; and old specimens might date to the late 1800s and early 1900s when French expeditionary geologists brought hundreds of specimens back to European markets. This looks to
Betafite - Ambatofotsy pegmatite, Mahavelona, Soavinandriana Dist.…
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How does pegmatite form and why are its minerals so big?... | Filo
How does pegmatite form and why are its minerals so big?... | Filo
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𝐒𝐂𝐇𝐎𝐑𝐋: 𝐓𝐎𝐔𝐑𝐌𝐀𝐋𝐈𝐍𝐄 😍⚒️❤ 𝐑𝐚𝐣𝐚𝐬𝐭𝐡𝐚𝐧, 𝐈𝐧𝐝𝐢𝐚 🇮🇳 𝐃𝐄𝐒𝐂𝐑𝐈𝐏𝐓𝐈𝐎𝐍: ⬇️ The photograph shown below is of a mass of pegm…
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From July 13, 2018 at Emerald Hollow Mine in Hiddenite, N/C
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