Also contained is zircon, fluorite, and allanite. Amphibole, biotite, sphene, allanite, and oxides are typically more abundant. Distinctive accessory minerals include&colon; fluorite, topaz, apatite, spinel, allanite, sphene and cassiterite. Wasium was supposedly found in the mineral wasite, which is a form of allanite. Epidote can be found, especially on the edges of allanite. Other accessory minerals are allanite, zircon, and apatite. This island is the type locality for allanite a member of the epidote mineral group. Allanite, epidote, secondary minerals like chlorite and albite are also discerned. The inclusion of thorium and other radioactive elements in allanite results in some interesting phenomena. Other minerals known to undergo metamictisation include allanite, gadolinite, ekanite, thorite and titanite. Also highly radioactive grains of allanite often have their structure disrupted or are "metamict". Inclusions of apatite, monazite and zircon are also contained in allanite. Less important are allanite, apatite, clinopyroxene, olivine, orthopyroxene, quartz, sphene and zircon. Allanite is a diagnostic accessory mineral in I-type granites. Another mineral in the collection was later named allanite after Thomas Allan.