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Locality

Långban, Filipstad, Värmland, Sweden

Formula

Pb₁₄O₉(AsO₄)₂Cl₄

Size

Miniature 4.5x2.5x2cm

Tagged

arsenate

Special Info

Type Locality

This is an older specimen from Langban with a Ward's label (see prov. tab). As described in the book "Langban", it occurs in Hausmannite bearing dolomite  & calcite rich matrix - much like this specimen. The Sahlinite itself is light yellow with visible cleavages. Excellent specimen from this incredibly rich mineral deposit. Rare.

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Locality

Långban, Filipstad, Värmland, Sweden

Formula

Pb₁₄O₉(AsO₄)₂Cl₄

Size

SmCabinet 5.5x2.3x1cm

Tagged

arsenate

Special Info

Type Locality

Rich specimen of Sahlinite, which on this specimen, occurs as individual 1mm or less crystal grains to 3mm groups in Quartz matrix. Sahlinite is a very rare lead-arsenate. By all accounts this is good specimen. It is out of the Kidwell collection obtained by Dakota Matrix 20 years ago  (see prov. tab).

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Locality

Kombat mine, Grootfontein, Namibia

Formula

Ca₄₈Mg₁₆Al(SiO₃OH)₄(CO₃)₁₆(BO₃)₂₈·(H₂O)₃(HCl)₃

Size

Thumbnail 1.5x1x1cm

Greyish to purple, excellent crystal. Crystals such as this one must be very rare. There is probably work to be done on this specimen as Dunn's description was a work-in-progress. This may be a pseudomorph. Nonetheless a very interesting piece with associated bright yellow crystal grain of Kombatite to 1mm.

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Locality

Volcano Island, Lipari, Eolie Islands, Messina Prov., Sicily, Italy

Formula

NH₄Cl

Size

SmCabinet 6.5x5x3cm

White mostly formless crystals of Salammoniac on yellow Rosickyite.

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Locality

Ravat Village, Yagnob River, Zeravshan Range, Sughd, Tajikistan

Formula

NH₄Cl

Size

Thumbnail 3x0.7x0.4cm

Bizzar weird crystal group shaped like a feather. These crystals are very hard to come by and rare in nature.

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Locality

Ranger mine, Northern Territory, Australia

Formula

Mg(UO₂)₂(PO₄)₂·10H₂O

Size

Cabinet 10x8.5x6cm

Tagged

phosphate

Special Info

Antique Specimen

Special Info

Radioactive!!

Museum quality specimen of opaque greenish yellow super-sized crystals of Saleeite. The largest crystal is 1.7cm. Many of the other crystals are tabular and stacked like pages in a book fanned out. Formerly in the Colorado School of Mines collection. See prov. tab for older labels. Ex. Barbara Cureton collection.

The color match is most like the first photo. I had to "tweek" the color in the remainder of the photos since, as usual, the digital process washes the true color out.

This specimen is remarkably similiar to the one in the second edition of Encyclopedia of Minerals by Roberts & Campbell.