Small metallic crystals of Linnaeite on matrix. Linnaeite is a rare cobalt sulfide mineral.

Specimen of pearly white Manandonite from the type and only locality for the species, the Antandrokomby pegmatite in Madagascar.

Off-white pearly crystals of Vantasselite. From the type locality for the species.

Small 1-2mm crystals of Canfieldite, rare silver tin sulfide, that contrast well against the light colored matrix. Canfieldite is in the Argyrodite group of minerals. From MINDAT: Named in 1893 by Samuel Lewis Penfield in honor of Frederick Alexander Canfield [April 7, 1849 Randolph, New Jersey, USA - July 3, 1926), of Dover, New Jersey, USA. Canfield was a mining engineer and mineral collector.

Laffittite in matrix with yellow Orpiment and red Realgar. From MINDAT: Named in 1974 by ZdenÄ›k Johan, Joseph Mantienne, and R. Picot in honor of Pierre Paul Laffitte (January 1, 1925 Saint-Paul-de-Vence, Alpes-Maritimes, France - ), director of BRGM (French Geological Survey), then director and president of Ecole Nationale Supérieure des Mines de Paris..

Thick layer of green Widgiemoolthalite on matrix. The Widgiemoolthalite is mostly massive light lime green with areas of darker green micro crystals. The 132 North open pit nickel mine has produced the greatest variety of secondary nickel minerals found anywhere in the world to date, some being the best of their species. It is the only locality for Widgiemoolthalite. Ex. Robert Phillips collection.

Schist matrix covered by dozens of small tan crystals of Joaquinite, and likely many more present under the areas of white Natrolite. There are also a few black Neptunite crystals in association.

Mcguinnessite is a rare Mg-Cu carbonate, a member of Rosasite Group and is named after well-known California mineralogist, Al McGuinness. The matrix is richly covered with radial clusters and hemispheres of teal-blue McGuinnessite on most sides. Comes with an old Chuck Trantham label that indicates it was collected by Chuck and Al McGuinness in May 1982 and valued at $40 at that time.

Dark reddis brown Armstrongite from the type locality for the species. Named after American astronaut Neil Armstrong.

Small yellow/green crystals of Heirichite on matrix, a rare mineral in the Autunite group of minerals.

Two thumbnail sized specimens with blue Decrespignyite and white Tengerite.

Sepentinite matrix richly covered and composed of purple Barbertonite. Barbertonite is a magnesium chromium carbonate mineral polymorphous with the mineral stichtite and, along with stichtite, is an alteration product of chromite in serpentinite. From the type locality for the species.

Open vug filled with silvery grey crystals of Pararammelsbergite, a polymorph of Rammelsbergite in the Lollingite group of minerals.

Rare specimen of blue Schulenbergite, a hydrated copper zinc sulfate mineral, coating many sides of a white Quartz matrix. The Bastenberg Mine is an ancient lead and zinc mine and these specimens are hard to find. Comes with two old labels, one from Al McGuinness and one from Chuck Trantham showing his very old price of $100.

Pink Santaclaraite from the type locality for the species. Ex. Chuck Trantham collection.