Opal (var: Opal-AN) / (var: Hyalite Opal) Arizona foliated Pyrrhotite with soft golden

foliated Pyrrhotite with soft golden colored “discs” of Siderite from the famous Eagle Mine (more properly the New Jersey Zinc Eagle Mine) near Gilman

The piece has a small contact towards one of the corners but

euhedral crystals of Native Copper along with elongated

This piece was mined around 2000 and is one of the better Spinels from the collection of my father

without question

Opal (var: Opal-AN) / (var: Hyalite Opal) Arizona foliated Pyrrhotite with soft goldenA richly colored group of spherical glassy beads of Hyalite Blood Vessel Opal from this new find in San Luis Potosi, Mexico. The inclusions are created by iron oxide and give the piece wonderfully strong red orange coloration and thin capillary like lines where the nickname Blood Vessel Opal comes from. A tiny bit of attached matrix makes for a great overall piece, and a worthwhile pickup for anybody interested in the material. At the beginning of