Iris agate
Name for an iridescent variety of agate. Agate consists of so-called fibrous chalcedony. In thin slices, the fibers are sometimes visible in transmitted light and…
Tag: iris agate
Agate
Name for a distinctly striped or banded chalcedony. Originally found in the river Dirillo (formerly Achates) in Sicily, Italy, from which the name is derived.…
Educational live session on agate
Recording of an educational live session for mineral and gemstone enthusiasts from my community. This session is about agate, a banded variety of chalcedony that…
Live session #21 Agate
Recorded live session in which I discuss and show examples of the colorful mineral agate. Agate is a banded variety of chalcedony, which in turn…
