Caveman Rocks

Rocks, Minerals, Collectibles, Geology
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North America
These specimens are primarily consist of cylindrite on a massive sulfide matrix from the type locality. Cylindrite is a rare lead-tin sulfosalt that occurs in cylindrical aggregates.
Page 16, Cylindrite, Santa Cruz Mine, Poopo' Province, Oruro Department, Bolivia
CR 1450: Cylindrite, Santa Cruz Mine, Bolivia: 3.0 cm x 2.8 cm x 1.3 cm, 24.6 grams. $27. A nice TN with cylindrite on all surfaces. Displays well in several different orientations. Nice long aggregates.
CR 1453: Cylindrite, Santa Cruz Mine, Bolivia: 2.2 cm x 2.5 cm x 1.2 cm, 13.5 grams. $10. A nice representative piece with cylindrite aggregates on both sides.
CR 1451: Cylindrite, Santa Cruz Mine, Bolivia: 3.3 cm x 2.9 cm x 2.0 cm, 35.8 grams. $36. Slightly bigger than a TN, this nice piece has excellent cylindrite on both sides.
CR 1454: Cylindrite, Santa Cruz Mine, Bolivia: 4.1 cm x 3.2 cm x 2.4 cm, 62.1 grams. $145. A very nice miniature with an exceptionally large cylindrite aggregate (upper center, pointing to 11 o'clock) that is nearly 2 cm long and 2 mm wide. Excellent all around with a rich covering of cylindrite on the back side (below).
CR 1459: Cylindrite, Santa Cruz Mine, Bolivia: 4.4 cm x 4.0 cm x 3.3 cm, 123 grams. $65. A nice miniature with abundant cylindrite covering most of the specimen.
CR 1454: Cylindrite, other side of the same piece as above.
CR 1460: Cylindrite, Santa Cruz Mine, Bolivia: 5.8 cm x 4.4 cm x 2.8 cm, 137.6 grams. $75. A nice small cabinet piece with a good coating of cylindrite on the large side that is shown though the back is mostly barren. The interesting veinlet running through the specimen has an unknown greenish mineral.
CR 1465: Cylindrite, Santa Cruz Mine, Bolivia: 4.4 cm x 2.9 cm x 2.8 cm, 71.2 grams. $40. A nice miniature sparse cylindrite on the back. On the base (below) you can see the pyrite which it grew on.
CR 1465: Base