This is an unpolished Fire Quartz crystal that has been in my personal collection since 2004. When I bought it, it was said to be a Natural Titanium Quartz - but I feel that it has much of its colour from Lepidocrocite and iron. This one has both surface and phantom black, orange and red deposits and a clear core. It has a very reasonable termination, some smaller crystals grouped at its base, and is a nice channeller formation.
Size: 5 x 2 x 1.5 cm