Milpillas Mine, Cuitaca, Municipio de Santa Cruz
2.7 x 1.6 x 1.8 CM (small miniature/ large thumbnail (toenail))
new year 2021
A highly lustrous, bright deep blue cluster of Azurite crystals showing complex edge and face modifications. In excellent condition as seen this has a few tiny bits of Malachite alterations but is nearly all brilliant Azurite. From early finds at Milpillas, this is unusual since the crystals are complete, doubly terminated and without any matrix.
Mina Ojuela, Mapimi
6.8 x 5.7 x 2.6 CM (cabinet)
new year 2021
A flat matrix with one face well covered with botryoidal Rosasite balls. Excellent velvet luster and sheen, the color grades from a dark green to a lighter blue green. This is the old style of Rosasite from the 1960's the matrix is a soft gossan but is quite stable. The color and luster of a good Rosasite should look like this. This locality at one time produced lots of this distinctive Copper specie and some small finds still pop up, it has made these an excellent value for such an esthetic mineral.
A fine old English "oakstone" a sliced part of a Barite Stalactite with one face polished. The concentric structure is well-exposed on the polished face, it is quite chantoyant. From the collection of Dr. Warren Johansson, it was a gift to him from Al Shattuck in 1932.
A German classic specimen covered on all faces with very tiny crystals and crusts of Erythrite. This is the type locality for the mineral though it is not very common there. The underlying matrix is a heavy Cobalt rich mass that probably is Skutterudite or similar since some tiny cubic shapes can be made out under the crusts. A rich "Cobalt bloom" specimen that has some nice sparkle under strong lighting.
Duftite on Calcite
3.5 x 3.2 x 2.2 CM (small miniature/ large thumbnail (toenail))
new year 2021
Calcite rhombs in a jumbled cluster richly encrusted with Duftite some of which is the matrix for a second generation of tiny Calcites that add a lot of sparkle. Classic Tsumeb piece, in very good condition, the Duftite is in well-formed balls and looks especially bright under magnification.
Historic Meteorites with impressive provenance. From G.F. Kunz collection to Amherst college to Warren Johansson (in 1931). Three fragments of Iron meteorite total weight of 19.9 grams, the largest 2.6 CM across, these each have a distinctly different look, a very interesting suite. From the famed May 10th 1879 fall at Estherville, Iowa. Two of the pieces have had some areas ground revealing the bright metallic interior. This was a witnessed fall and was quite famed at that time. The historic details seen on line differ in many details (like this was a 744 pound mass or a 455 pound mass). All accounts do agree this was an exploding meteorite and a spectacular event. Verified fragments are quite rare and well valued.
An older, choice Benitoite specimen with several deep inky blue gem crystals contrasting with the matrix. There is certainly more good Benitotite within the Natrolite but as is this has a nice display. The color on several crystals is super. A few tiny transparent orange Joaquinite crystals are also seen on close exam. The old Schortmanns label for this piece gives a late 1940's vintage though this is possibly a pre-WW2 specimen. This is from the type locality for both Benitoite and Joaquinite. Top Benitoites have become incredibly expensive, this is not a top piece but it is not a four to six figure price either, a very good value for the quality.
SOLD Fluorite - zoned classic USA
stock #SOLD 15.1-036
Minerva #1 Mine, Cave-in-Rock, Hardin County
7.2 x 4.8 x 2.3 CM (cabinet)
new year 2021
A small cabinet specimen of Fluorite that is mostly yellow but with light blue and purple edges on selected crystals. Nice face structures and etching that is classic for the locale. No matrix except for Fluorite so the whole specimen is translucent and glows well with backlight. Overall in fine condition, there is almost no bruising, but under magnification some tiny bits are noted. Nearly every Fluorite from this region under close inspection has some sort of damage but this is far better than usual, and a relative great value.