Magdalena, Jalisco: fire opal mine tours

Where: Mexico · North America · approx. 20.91, -103.98 (vicinity only)

Why this spot: Rockhounding locality: Mexico's fire opal capital, with hundreds of small opal mines in the volcanic hills around Magdalena and the San Simon area near Tequila

What turns up: fire opal in rhyolite matrix, precious opal chips from tailings, cut stones and rough from town shops

Access: Licensed / permit.

Mines are private concessions: visit on a paid mine tour (commonly bundled with Tequila trips, roughly 20 to 60 USD) where operators let guests pick opal in tailings; independent digging is not permitted

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.