rare minerals Pegmatite is the host rock for many rare mineral deposits. These minerals can be commercial sources of: beryllium, bismuth, boron, cesium, lithium, molybdenum, niobium, tantalum, tin, titanium, tungsten, and many other elements.
Rare minerals from pegmatites Exhibition Text. As molten granite crystallizes, the melt that remains becomes enriched in water and rare elements such as boron, lithium, tantalum, and niobium. ... For Educators. Topic:
Rare element pegmatites are mineralogically complex and enriched in lithophile and incompatible elements, such as beryllium, lithium (spodumene and petalite), rubidium (lepidolite), cesium (pollucite), tin (cassiterite), tantalum and niobium (Ta-oxide minerals), rare-earth elements, and uranium.