Yellow Apatite Specimen | 23mm | Cerro de Mercado, Mexico Sunstone This phenomenon is known as

This phenomenon is known as zoning

This green Tourmaline from Pakistan features an elegant rosette of Cleavelandite that has naturally formed across the front surface of the crystal

To avoid this

A natural Yowah Boulder Opal rough specimen weighing 5

Please Note: The tip is not perfect as show in the photos but is reflected in price

Yellow Apatite Specimen | 23mm | Cerro de Mercado, Mexico Sunstone This phenomenon is known asA fine locality piece from one of Mexico's most celebrated mineral sites Cerro de Mercado, Durango. This small but well formed apatite specimen displays the warm golden yellow to honey tone characteristic of the Cerro de Mercado material. The crystal has a vitreous lustre and good translucency, with a clean, well defined form. At 23mm, it is a compact but characterful piece the kind of specimen that rewards close inspection. Apatite is a stone of