Owing to the quenching effect of iron, sphene exhibits no fluorescence under ultraviolet light.
en.wikipedia.org The white and the pink facies are a more fine-grained variation of the melanocratic facies, they also lack hornblende and sphene.
en.wikipedia.org Other minor inclusions are sphene, apatite, rutile, zircon, and sphalerite.
en.wikipedia.org These include peridot, aquamarine, topaz, ruby, emerald, rare-earth minerals bastnaesite and xenotime, sphene, tourmaline, and many varieties and types of quartz.
en.wikipedia.org The minerals found are quartz, mica, chlorite, albite, sphene, and graphite.
en.wikipedia.org