"Rainbow Rock"- the detail with the perspective on the side facing away is a nice touch. If only the same care had been put into making the gradient more organic. plus a small, selective color palate is much more attractive than an easy rainbow.
Uranocircite is a uranium mineral with the chemical formula: It is a phosphate mineral which contains barium and is a green to yellow colour. It has a Mohs hardness of about x cm crystal group of uranocircite with a minor amount of attached matrix.
Excellent crystal specimen of Fluorapatite from the classic German area for the species. The lustrous hexagonal Fluorapatite crystals measuring to across the pinacoid, form an aesthetic intergrown group, on a minutely botryoidal light Muscovite matr