Occasionally, enrichment in the unusual trace elements will result in crystallisation of equally unusual and rare minerals such as beryl, tourmaline, columbite, tantalite, zinnwaldite and so forth.
en.wikipedia.org It is also known that there is other mineral wealth in the territory, including uranium, thorium, cobalt, molybdenum, titanium, tantalite, columbite, cassiterite, gold, and diamonds, along with various other minerals.
en.wikipedia.org Over time, the mine would produce quantities of quartz, feldspar, mica, beryl, spodumene and columbite.
en.wikipedia.org Associated minerals include quartz, feldspar, spodumene, amblygonite, tourmaline, columbite, cassiterite, topaz and beryl.
en.wikipedia.org