Large Pegmatite-patched Granite Rock: Natural Crystal-rich Decorative Stone - Etsy
Large Pegmatite-patched Granite Rock: Natural Crystal-rich Decorat…
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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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Pegmatite, an igneous rock, hosts precious gems like emeralds, tour…
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RECOGNIZING AN EVOLVED MICA PEGMATITE FOR LITHIUM PROSPECTS When a pegmatite starts showing elevated Rb, Cs, Ta, Sn, and Nb, it’s a strong signal that the rock is highly evolved , and could host lithium minerals. You’ll notice the mica color changes as the pegmatite evolves: Early stage: Dark brown to black (Biotite) Intermediate stage: Silvery or grey (Muscovite) Highly evolved: pink to purple (Lepidolite – lithium-bearing mica) So, if your mica pegmatite begins to shine with purple or lilac to
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