Topaz with Columbite
A rare Niobium and Tantalium mineral very difficult to find pure. Normally is mixed with Tantalite forming prismatic crystals, rarely acicular or fibrous .
Quite often we can see these needles-like forming a cluster or floating in the topaz like spears in the sky .
From Minas Gerais, Brazil.
Size: 21x13x8.3 mm.
Weight: 13.08 ct.