Achtaragdite is a rare pseudomorph of a hydrogrossular-chlorite-carbonate mineral after what is believed to be Helvite. This is a little understood psuedo likely found many decades ago at the type locality for Grossular garnet in Siberia. It is a fine example with a well formed tetrahedron of the form of the former Helvite crystal. 

Glassy, colorless/white orthorhombic crystals of vuagnatite, a rare silicate mineral, on matrix. Collected by Chuck Trantham in 1982 and valued at that time at $100.

Thick, lustrous black Neptunite crystals on a flat matrix of Natrolite over schist. This is an old Steve Perry specimen that I purchased from Steve about 20 years ago and have kept in my collection ever since. All the crystals are terminated and undamaged, the main crystal is 2.5cm long. There are small brown Joaquinite crystals on the Natrolite.

Well saturated purple pink crystals of Cobaltian Calcitewith crystals to 1cm in size. Undamaged and sawcut on back. Old material from the Chuck Trantham collection.

Single clear Quartz crystal heavily included by silvery crystals of a mixture of galena, pyrite, chalcopyrite, and tetrahedrite (Ag-rich 'Freibergite'). Ex. Chuck Trantham collection. Acquired by Chuck in 1980 from Al McGuinness

Fine floater cluster of thick arsenic rich Vanadinite crystals from Touissit. Main crystal is 2cm tall and 1.5cm thick. Ex. Chuck Trantham collection and comes with an old Alain Carion label.

Large cluster of transparent to translucent Fluorite cubes from the Minerva Mine. The Fluorite is yellow with thin outer layers of purple and has both attached and included crystals of Chalcopyrite. Clean and in excellent condition with small crystals on the backside too.

Well crystallized Copper specimen with a grouping of good crystals rising up off larger, thick crystals at the base.

Bi-colored Heulandite crystal with Mordenite. A fine quality double-terminated Heulandite 2cm wide. Hard to find old specimen from Chuck Trantham personal collection.