Bear Creek Canyon, Colorado Springs area
4.3 x 3.2 x 3.1 CM (miniature)
A nice, colorful Amazonite crystal collected by the late Dr. Warren Johansson in 1945 just prior to his induction in the US Army. He had treated himself to a solo mineral collecting tour of the US Western regions while awaiting being shipped out overseas. He wrote a nice memoir about that adventure some 65 years later. The color is a little richer than most seen from this locality, the condition is quite good, there are several clean contacts but there is no damage or bruising. A classic US specie from Colorado, with some extra provenance.
A very well*-formed example of Goethite crystals on a Smokey Quartz prism. The Quartz is unusual in that it is doubly terminated and in very good condition. The "Ongeite" is in blocky curved rhombic crystals and stacked groups. In much better condition and distinct form that we usually see, this is from an older Northeast collection obtained from Lazard Cahn (no label however) in the early half of the 20th century. A distinctive and classic American specimen these are unlike anything else from any other locality. A few areas of the Quartz have red staining that is also typical of this region.
Microcline var. Amazonite
Lake George area, Teller County
7.3 x 4.6 5 CM (cabinet)
Pale-green blocky crystals of Amazonite in a classic cluster from Colorado. The main crystals are complete and perfect condition, the outer edges are broken as is typical when removed from a shattered pocket. An affordable specimen from this famed region, attractive on all sides.
SOLD Calcite with Siderite
stock #SOLD AX-22-279
Mancos Shale, Montrose, Montrose County
6.2 x 4.8 x 4.2 CM (cabinet)
Late Summer 2021
Well-defined Calcite rhomb crystals to 2.8CM across, on a contrasting Siderite matrix. The Siderite is botryoidal with a few isolated balls. In excellent condition as seen, the Calcite is fluorescent a good red color. Ex Frank Knaus and Dave Bunk, this is well above the usual quality for these Shale deposits, which we understand are either exhausted or off limits to collecting. A nice Colorado Calcite.
A very clear, sharp and lustrous Aquamarine collected in the 1940's by Warren Johannson. From the famed Mt Antero location which is a magnificent, high elevation pegmatite. In fine condition this is a pale green-blue color and fully transparent.
A colorful mix of rare minerals that are very well-crystalized. The Metatyuyamunite is in well-defined crystals mostly of yellow hues and the Hummerite (a rare Vanadium specie) is the more orange color. Coffinite is identified as well and there is at least one other specie present as bright green platelike crystals. This piece was in the Ruth and Andy Palmer rare species collection (and later Hladysz) which was used as a research tool by the late Dr. Joe Manderino. This area is the type locale for Hummerite, the name Uravan is formed from the element names Uranium and Vanadium.
A single Barite crystal at the base that diverges into two slightly offset crystals with separate terminations at the end. In excellent condition, a classic Stoneham, Colorado Barite with zoned blue color. Translucent to transparent with no damage. The better Stoneham Barites are some of the best values of crystallized USA specimens.
More Cash Lode, Montezuma District
3.4 x 2.5 x 2.3 CM (small miniature/ large thumbnail (toenail))
new year 2021
Matildite is a fairly rare Silver Bismuth Sulfide. Best known as micro crystals from several classic German Silver mines, it is especially uncommon in the USA. This is not a pretty specimen but a nice rarity for a Silver specie suite. It has naked eye visible masses and a few very tiny spots of crude micro crystals of silvery Matildite mixed with Pyrite.