This is the first in the world. It is not found in other countries,” Dr. Kyaw Thu told The Myanmar Times in 2016, recounting ...

Igneous rocks are formed from molten material that ... Types include aplite, pegmatite and andesite. A glimpse at Proterozoic-era gneiss with dike intrusions. Gneisses are metamorphic rocks ...

(Donald E. Hurlbert, Smithsonian) For those who study what happens when magma and crust collide, igneous rocks like pegmatites are a welcome sight. But in addition to holding clues about Earth’s ...

Pegmatites are coarse-grained igneous rocks containing large crystals at least 1 centimeter in diameter. Composed of feldspar, mica and quartz, pegmatites are formed by the final stages of the ...

Kyawthuite has an asymmetrical structure and a Mohs hardness of 5.5. It formed deep underground in a pegmatite — an igneous rock. Its chemical formula is Bi³⁺Sb⁵⁺O₄ with traces of tantalum.

Mike Wise Wise specializes in studying pegmatites, a type of igneous rock loaded with quartz and other crystals. Granite-like pegmatites had been mined for decades for the ceramic industry when ...

Pegmatite, an igneous rock similar to granite, commonly holds quartz, feldspar and mica, but some versions also host gemstones like emeralds, tourmaline and beryl. Additionally, pegmatites can ...

The six samples that returned elevated lithium were all boulders of pegmatite rock – a course igneous rock – collected around mapped granite bodies. Geochemical results also showed clear ...

He added "Frontier made the discovery in a type of pegmatite (igneous rock) that is very rare, and quickly defined quite a considerable deposit." "We'd like to thank the committee for ...