Cobaltoan Calcite - D.R. Congo commercial-grade citrine is often amethyst

commercial-grade citrine is often amethyst that has been heated to extreme temperatures

You will receive the slab pictured

This fist had thick scales with conical teeth

You will receive the vanadinite specimen pictured

Cobaltoan Calcite - D.R. Congo commercial-grade citrine is often amethystAlthough this is not the largest specimen of cobaltoan calcite ever, it is still a beautiful piece to add to any collection. The crystals are a bit larger than druzy, allowing you to still see their formation without having to spend a fortune. This piece was purchased from an older collection, leaving us to believe it has been unearthed for quite some time! Cobaltoan Calcite is a rather rare variety of calcite that contains inclusions of cobalt. The