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13 specimens listed
Page   1 | 2 |

Pyrrhotite - partly altered crystals
stock #13.1-086
Santa Eulalia, Aquiles Serdan
Chihuahua, Mexico
5.4 x 2.9 x 2.3 CM (cabinet)
price: $125
Pre Holiday 2017

A well-formed cluster of Pyrrhotite crystals showing the in process alteration on several faces. The terminations are unaltered and have the typical brassy color. This is a 1960 vintage specimen from Santa Eulalia which at that time produced many Pyrrhotites. These are now rare on the market. In good complete condition although the main crystal shows separations from altering, and would have eventually split apart, so this shows well a mid-stage transition.

Rhodochrosite with Calcite
stock #A-10-845
Santa Eulalia, Aquiles Serdan
Chihuahua, Mexico
5.7 x 4.5 x 4 CM (cabinet)
price: $145
Pre Holiday 2017

An old (1960s vintage) and unusual Rhodochrosite from Santa Eulalia. The Rhodos are bright pink and very gemmy rhombs in small clusters and rosettes. A few white Calcites in rice grain form are sprinkled in and the whole rests on a contrasting greenish matrix that is a cast after what probably were earlier Calcite crystals. In fine condition.

Arsenopyrite pseudo after Pyrrhotite
stock #AX-10-741
Santa Eulalia, Aquiles Serdan
Chihuahua, Mexico
7.3 x 5.5 x 3.9 CM (cabinet)
price: $1650


An exceptional, elegant Pseudomorph ex. Ed Swoboda's fine collection of Pseudos. Likely mined pre 1970, there is nothing like this on the market. Tapered, curving crystals of the original Pyrrhotites formed a very esthetic cluster and reached to 5.3 CM long. The replacement by Arsenopyrite seems to be complete and has a brilliant sparkling luster. Minor associated Sulphides are seen but this is almost entirely Arsenopyrite/ Pyrrhotite. In great condition as seen, this displays well from all angles. A fine addition to any pseudo collection, Mexican or Sulphide suite.

Creedite (large purple crystals)
stock #AX-18-006
Santa Eulalia, Aquiles Serdan
Chihuahua, Mexico
3.2 x 2.7 x 1.9 CM (small miniature/ large thumbnail (toenail))
price: $880
Spring 2014

A small specimen but with unusually large, perfect crystals of purple Creedite. An old (pre 1980) specimen from Santa Eulalia, that is now almost impossible to find in any quality. Quite different and much rarer than the orange Creedite from Durango, good Purple Creedite has only been found in crystals over 1 CM in two locations, Kazakhstan and Santa Eulalia. At about 2 CM long these are huge for the specie, undamaged, have great form and displays well from all sides.

Calcite enclosing Hematite (2 generations)
stock #11.1-37W
Santa Eulalia, Aquiles Serdan
Chihuahua, Mexico
7.5 x 5.6 CM (cabinet)
price: $360


From a small find in the 1970's this calcite is very esthetic and colorful. The matrix is a sparkling white to light yellow druse of Calcite covered with hills of deep red to black drusy crystals. A single later generation clear crystal is perched on one side and all is well-arranged and eye-catching. A very pretty display quality specimen that is uncommon, unusual, undamaged and still affordably priced.