35194: Fluor-buergerite, Topaz and Opal-AN
- $12 Fluor-buergerite occurrence, Mexquitic de Carmona Municipality, San Luis PotosÃ, Mexico Miniature - 4.2 x 3.2 x 1.9 cm 29 grams Specimen status: Available Send an email with specimen number to order Lustrous, dark brown fluor-buergerite
tourmaline crystals to 5 mm on rhyolite matrix. Less than
half of these are complete. Also present are crude to
euhedral topaz crystals reaching 2 mm, and a small patch
of opal-AN which glows bright green under shortwave
ultraviolet. This material was mined by a single person,
who did not share the mine's precise locality. With the
miners passage the locality has been lost, and (perhaps)
should be considered (for the moment) to be extinct. An
affordable example of material no longer common on the
mineral market.
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