Rare Afghanite Crystal Cluster on Calcite with Pyrite – Afghanistan A remarkable and highly collectible natural Afghanite crystal cluster from Afghanistan, beautifully associated with a matrix of white Calcite and contrasting Pyrite. The Afghanite crystals display an attractive blue coloration and distinctive crystal forms, creating an impressive mineralogical combination. One of the highlights of this specimen is its bright blue fluorescence under UV light, making the piece especially appealing to collectors of fluorescent minerals as well as fine Afghan mineral specimens. The combination of blue Afghanite, white Calcite and metallic Pyrite provides excellent contrast and gives the specimen a very attractive three-dimensional appearance. Afghanite is a relatively uncommon mineral, and well-developed crystals with attractive associations such as this are desirable among mineral collectors.