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Specimen #TUC31708
The piece has a small contact towards one of the corners but
foliated Pyrrhotite with soft golden colored “discs” of Siderite from the famous Eagle Mine (more properly the New Jersey Zinc Eagle Mine) near Gilman
This piece was mined around 2000 and is one of the better Spinels from the collection of my father
and arguably
Opal (var: Opal-AN) / (var: Hyalite Opal) Arizona Specimen #TUC31708A 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
