Cobaltoan Calcite - D.R. Congo Here is another great example

Here is another great example of smoky quartz

North Carolina

Aventurine is derived from the Italian word "venture" meaning chance

Both pincers are present

As time pressed forward

Cobaltoan Calcite - D.R. Congo Here is another great exampleAlthough 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