Description
This specimen has it all. A combination of mineral species that the Portuguese Tin-Tungsten mine, operated for 125 years, is known for: translucent light blue-gray Apatite in sharp, hexagonal crystals with a vitreous luster, associated with silvery Arsenopyrite with a faint brassy touch and a top metallic luster, and beige-brown Siderite rhombohedrons, perched on sheets of olive-brown Muscovite. A very typical and aesthetic specimen with just minor dings on the back of the Apatite cluster but otherwise a perfect display side.
Paragenesis
Muscovite, Siderite