| # | Name | Type | Locality | Size | Acquired | Thumbnail |
|---|
| 1942 | Marcasite | Micromount | Bethlehem Steel, Marmoraton Mine, Marmora Township, Hastings Co., Ontario, Canada | | 2010-04-13 |  |
| 1938 | Marcasite on a Calcite Cephalopod | Micromount | Toronto, Ontario, Canada | | 2010-04-11 |  |
| 1906 | Fluorite with Marcasite inclusions | Micromount | Fall Hill Quarry, Ashover, Derbyshire, England, United Kingdom | | 2010-03-11 |  |
| 1869 | Calcite with Marcasite | Mineral | Brushy Creek Mine, Greeley, Reynolds Co., Missouri, USA | 11.9 x 7.8 x 6.9 cm | 2010-01-15 |  |
| 1651 | Marcasite | Micromount | Foote Lithium Company Mine, Kings Mountain District, Cleveland County, North Carolina, USA | | 2009-10-10 |  |
| 1216 | Sphalerite on Marcasite | Micromount | Beamsville, Clinton Township, Lincoln Co., Ontario, Canada | | 2009-01-23 |  |
| 1186 | Marcasite Cluster | Micromount | Dallas, Texas, USA | | 2009-01-13 |  |
| 1182 | Marcasite on Dolomite | Micromount | Beamsville, Clinton Township, Lincoln Co., Ontario, Canada | | 2009-01-13 |  |
| 1177 | Marcasite | Micromount | Dundas, Ontario, Canada | | 2009-01-12 |  |
| 1175 | Marcasite | Micromount | Pint's Quarry, Raymond, Black Hawk Co., Iowa, USA | | 2009-01-12 |  |
| 1162 | Marcasite | Micromount | Dundas, Ontario, Canada | | 2008-12-25 |  |
| 1161 | Marcasite | Micromount | Pint's Quarry, Raymond, Black Hawk Co., Iowa, USA | | 2008-12-24 |  |
| 1157 | Marcasite Concretion | Micromount | Dallas, Texas, USA | | 2008-12-24 |  |
| 1153 | Marcasite on Calcite in Fossil | Micromount | Etobiocoke, Ontario, Canada | | 2008-12-22 |  |
| 1151 | Marcasite | Micromount | Dallas, Texas, USA | | 2008-12-22 |  |
| 1149 | Marcasite | Micromount | Monroe County, Indiana, USA | | 2008-12-21 |  |
| 1147 | Marcasite (Rod) | Micromount | Pint's Quarry, Raymond, Black Hawk Co., Iowa, USA | | 2008-12-21 |  |
| 939 | Barite in Marcasite | Micromount | Pint's Quarry, Raymond, Black Hawk Co., Iowa, USA | | 2008-11-11 |  |
| 848 | Dolomite with Marcasite | Micromount | Beamsville, Clinton Township, Lincoln Co., Ontario, Canada | | 2008-10-29 |  |
| 747 | Marcasite Stalactite | Mineral | Alcoa Mine, Hardin Co., Illinois, USA | 11.2 x 1.7 x 1.7 cm | 2008-07-17 |  |
| 472 | Calcite on Marcasite | Mineral | 29 Mine, Reynolds County, Missouri, USA | 14 x 7.5 x 5 cm | 2007-08-10 |  |
| 353 | Iridescent Sphalerite, Chalcopyrite, Marscasite on Dolomite | Mineral | Brushy Creek Mine, Reynolds County, Missouri, USA | 7.5 x 6 x 8 cm | 2007-02-04 |  |