It is usually associated with lepidolite, beryl, quartz, albite, amblygonite, and spodumene of pegmatitic origin. Associated minerals include quartz, feldspar, spodumene, amblygonite, tourmaline, columbite, cassiterite, topaz and beryl. Brazilianite is often confused with amblygonite, apatite, chrysoberyl, beryl, and topaz. Mineral examples include plagioclase, microcline, rhodonite, turquoise, wollastonite and amblygonite, all in triclinic normal (). Transparent amblygonite has been faceted and used as a gemstone. Australia, France, Germany, Namibia, Norway, and Spain have also produced gem quality amblygonite. Amblygonite forms a series with "montebrasite", the low fluorine endmember.