An uncommon and attractive Yaogangxian specimen. Lustrous iridescent Chalcopyrite covers most of a stack of flat hexagonal crystals of Pyrrhotite. Only on a few edges are the original golden metallic Pyrrhotite crystals visible. In excellent condition, what may look like bruising on some edges is actually perfect and sharp. The multicolor patina on the Chalcopyrite is bright and sparkling which is both esthetic and very different for this famed locality. Individual Pyrrhotite hexagons are up to 5 CM across yet are unusually thin at just 2-3 mm on average. A choice Chinese Sulfide!
A complete and perfect elongated crystal of Pyrrhotite is perched on a complex crystalized matrix. The Pyrrhotite looks very much like two crystals side by side but is in fact a single crystal. Fine stepped growths and silky patina on all sides of the specimen. The Galena and Sphalerite are both very lustrous and the whole piece is damage-free. An older specimen from Dalnegorsk, this is vintage about 1996.
Pyrite on/replacing Pyrrhotite
Contessa Mine, Santa Eulalia District
7.2 x 6.5 x 4.4 CM (cabinet)
Fantastically esthetic and perfectly formed curving Pyrrhotite crystals are covered with bright golden Pyrite. In perfect undamaged condition, ex Arizona Desert Museum. The main Pyrrhotites are slender sparkling gold crystals. With tapering habit some also have twists or curves. The Pyrite on the crystals faithfully follows the crystal striations. A rare and impressive Mexican specimen, the matrix is a mix of sulphides (Sphalerite, Galena) with Calcite, Quartz and Dolomite. The largest, slender crystal is over 6CM long and crowned with a rosette of small Calcite crystals. Way more impressive in person, this is not a typical Mexican Pyrrhotite!
Pyrrhotite with Galena
Dalnegorsk, Kavalerovo Mining District
5.7 x 5.3 x 3.6 CM (cabinet)
Early summer 2021
A bright metallic, flat crystal of golden Pyrrhotite that is perched on a little Galena. From the prolific finds at Dalnegorsk, this looks nice from either side, and is in very good condition. The crystal is undamaged, has no chips but is contacted and recrystallized on one edge. The wide flat face shows some multiple stepping as well. The crystal has some patina and slightly variegated luster.
Nicely composed miniature from the great Dalnegorsk deposits, ex Charles M. Noll collection. The Pyrrhotite crystal is perfectly perched, the wide terminal face is a brassy, slightly subdued hue and the edges are a brilliant golden with mirror bright luster. In perfect condition with no damage seen even with magnification. There have been many good Pyrrhotites found at Dalnegorsk yet it can be hard to find a miniature with standout quality and esthetics. Better in person.
Santa Eulalia, Aquiles Serdan
5.5 x 3.7 x 3.2 CM (cabinet)
new year 2021
A stack of aligned Pyrrhotite crystals with an unusual dull golden luster. These crystals have signs of some alteration and micro voids forming along striations, but the whole specimen is very solid and sculptural. An older specimen from Santa Eulalia these are quite different from the usual Dalnegorsk pieces.
A flower form composed of thin blades of Pyrrhotite crystals esthetically perched on sharp crystals of Arsenopyrite. A rare specie from the famed Yaoganxian mine these were found almost 2 decades ago, we have not seen any since. The main flower is 3 CM across with a dark metallic patina. The Arsenopyrite crystals are highly lustrous and sharp. Overall in fine condition, one edge of the main flower has what seems to be a small old rehealed break or edge contact, not at all distracting, otherwise the display side is perfect. A very choice Sulfide from anyplace and a superb piece for the legandary Yaoganxian or for that matter all of China.
Pyrrhotite with Siderite
Morro Velha Mine, Nova Lima, Iron Quadrangle
4.5 x 3.8 x 1.3 CM (miniature)
Worldwide mix summer
An exceptionally fine, bright metallic hexagon of Pyrrhotite dusted with a few small Siderite crystals. Ex Larry Conklin, Terry Szenics collection. In excellent condition, this is an fairly old vintage Brazilian specimen from Morro Velha, and is the sharpest with the best luster I have seen. Morro Velha has the distinction of being the longest running Gold mine in the world, it is well known for good Siderite specimens but Pyrrhotites of any size are rare. This is a nice Pyrrhotite from anyplace but incredible for Brazil. In excellent condition.