I had a customer ask for these and after several years I finally found Pyrolusite Clusters. They sparkly so beautifully. Interesting fanning structure. I will let the photos talk for this crystal.
Healing properties include assisting you on your spiritual development. It clears the emotional body of negative thoughts, feelings of unworthiness, anxieties or anger. Said to offer protection from the intentions of those who populate the lower frequencies of the astral realm.
Read more about the shape.
I love unusual crystals and pyrolusite clusters certainly fit the bill.