











Collectible Mineral Specimens Under $50
- Availability
- Available
- Price
- $15.00
- Locality
- Huanzala mine, Huallanca dist., Huánuco, Peru
- Formula
- CuPbSbS3
- Size
- 3 x 1.5 x 1.7 cm - Thumbnail
- Tagged
- sulfide, copper
Steel grey twinned crystals to 5mm.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Cobalt-Gowganda dist., Ontario, Canada
- Formula
- NiSb
- Size
- 7.5 x 4.5 x 3.5 cm - Sm Cabinet
A rich mass of Breithauptite from the Cobalt district of Ontario showing veinlets and rosette-like growth habits.
- Availability
- Sold
- Locality
- Maxwell quarry, Wakefield, Quebec, Canada
- Formula
- Mg(OH)2
- Size
- 10 x 6 x 2.5 cm - Cabinet
White cleavable mass of platy Brucite.
- Availability
- Sold
- Size
- Not Specified
- Tagged
- maps books, black hills, history, maps, books, book, map
Geology of the Region Around Lead, South Dakota, and its Bearing on the Homestake Ore Body
By Sidney Page
Spiral-Bound, Department of the Interior, Hubert Work, Secretary, US Geological Survey, George Otis Smith, Director, Washington Government Printing Office 1924 reprint
The results of the first systematic geologic investigation of the Homestake mine were published in 1904, however this investigation did not include the deeper workings of the Homestake mine. In 1912, permission was granted for Sidney Paige to discover evidence in support of new hypothesis regarding the origin of the ore. It is much desired that at some future date a more detailed investigation of this mine, perhaps the greatest gold mine in the world, be obtained and published.
Geology of the Region Around Lead, South Dakota, and its Bearing on the Homestake Ore Body is available in limited quantities.
- Availability
- Sold
- Locality
- Jamestown dist., Boulder Co., Colorado, United States
- Formula
- AuTe2
- Size
- 2.5 x 2.5 x 1.7 cm - Thumbnail
- Tagged
- ore mineral, tellurium, gold
1-2mm highly reflective Calaverite crystals in native Tellurium matrix. Sawed on one side so assume it is tested by EDS.
- Availability
- Available
- Price
- $10.00
- Locality
- Mendip Hills, Somerset, England
- Formula
- CaCO3
- Size
- 1 x 1 x 1 cm - Thumbnail
Tint waterclear crystals to 1mm.