Igneous Rocks: Pegmatite

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

Core Drilling for Lithium (Spodumene) Mineralization Our current drilling operation is focused on testing lithium-bearing pegmatites within a granitic–gneissic terrain. Drilling is being conducted at an inclination of 60° facing west, using NQ-size rods with a maximum drilling capacity of 300 m. The target zone for spodumene mineralization is projected between 25 m and 40 m, based on surface geological mapping and prior structural observations. The host lithologies include granite, granitic gnei

1.4K views · 46 reactions | RECOGNIZING AN EVOLVED MICA PEGMATITE FOR...

14K views · 4.1K reactions | Chloritoid - Dara-e-Pech pegmatite, Dara-e-Pech Dist., Kunar, Afghanistan More info: From a small find of the 1990s, this is one of the best-in-size-class crystals of this rare species. It has a fine shape combined with imposing symmetry and is complete. Formerly in the thumbnail collection of Herb Obodda. Thumbnail, 2.4 x 2.4 x 0.8 cm. Ex. Herb Obodda | The Arkenstone Gallery of Fine Minerals | Facebook