A very odd and attractive Chrysoprase specimen from the very old mines at Szklary, Poland. The matrix hosts very unusual but attractive clear quartz crystals with a mint green color caused by forming on top of the Chrysoprase. Szklary had both gem grade Chrysoprase and many Nickle minerals mined since the middle ages. We obtained a suite from that region in an old Czech collection, this notes it was obtained in 1980 the year the mine closed. We have never seen another one like this, the sparkling luster is not at all typical. Some areas of the earthy green minerals Pimelite and/or Nimite are noted as accessories, more typical for the area. A pretty quartz oddity.
An exceptionally fine galena that was mined when Silesia was part of Germany. This locality is best known for Schalenblende specimens but few good Galenas are seen from these old mines. This one is the best I know of in any collection. Crystals reach 2.5 CM and are mostly very modified Octahedra. In excellent condition, with a great patina and presentation. A well traveled piece, six earlier labels and a catalog card document some of the long provenance. Previously in the collections of John Marshall, M. Chervet, F.W. Cassierer, A. Carion and others.
Celestite on Sulphur
Machow Mine, Tarnobrzeg
9.3 x 6.6 x 4.9 CM (cabinet)
Post Tucson 2015
Bright and gemmy Celestite (Celestine) crystals are in radial sprays on vivid Sulphur crystals. In fine condition, the matrix is an open pocket that has protected the delicate crystals inside. Similar to old specimens from Sicily, the luster and sparkle of this specimen is equal to those.