P Mineral Specimens for Sale

Pachnolite

#41640

Availability: Available
Price: $40.00

Locality: Gjerdingselva, Nordmarka, Lunner, Oppland, Norway
Formula: NaCaAlF₆·H₂O
Size: 3.5 x 3 x 2 cm - Miniature

Tiny colorless micro crystals in a vug unseen in the photos, but visible under the microscope. Pachnolite usually occurs in pegmatites with a fluorine component most notably but not limited to Ivigtut. Such pegmatites often contain fluorite, fluellite, prosopite, topaz, cryolite, ralstonite and other alkali aluminum fluoride granitic bodies which are peraluminous and usually in "NYF" (niobium-yttrium-fluoride) evolved and fractionated pegmatites. In this case Gjerdingselva is not a pematite but is alkali (soda) rich in flourine.

Pachnolite at Dakota Matrix Pachnolite at WebMineral Pachnolite at MinDat

Palmierite

#PD49848

SOLD

Availability: Sold

Featured: Featured in Special Editions
Locality: Mt. Vesuvius, Somma Complex, Napoli, Campania, Italy
Formula: K₂Pb(SO₄)₂
Size: 6 x 1.5 x 1.5 cm - Sm Cabinet
Special Info: Antique Specimen
Special Info: Type Locality

Powdery yellow mineral in vial dated 1924. I am not sure if that is when it was collected or if it is from an eruption in 1924. It a relatively new vial, so not an antique like the other vials. Vesuvius is the type locality for Palmierite. Palmierite is rare having been reported from only nine localities worldwide.

Palmierite at Dakota Matrix Palmierite at WebMineral Palmierite at MinDat