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Actinolite : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2, Diopside : CaMg[Si2O6] |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA
A very good hand specimen for what is known as "uralite". These are prismatic crystals of diopside to 1 cm in length, these replaced by green actinolite. A very good pseudomorph specimen that is in very good shape damage-wise. Sits nicely for display. Size: 9.5 x 7.5 x 6.2 cm. Ex Don Belsher collection.
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| © Dan Weinrich | Photo ID: 135994 View Count: 200 |
Actinolite : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2, Diopside : CaMg[Si2O6] |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA
A choice example of this noted Colorado pseudomorph with prismatic diopside crystals to 3 cm in length set on a 7.8 x 6.2 x 6.4 cm matrix. The diopside crystals are replaced by green actinolite. This is a large crystal for one of these, known locally as "uralite". Minor black magnetite in association. Ex Don Belsher collection. Ref: Rocks & ... |
| © Dan Weinrich | Photo ID: 135996 View Count: 187 |
Actinolite : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2 |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA
Width of field is 2.5 mm. Collection of Jesse Crawford. Equipment: Nikon D-100 digital camera on a homemade microscope. |
| © 2008 Jesse Crawford | Photo ID: 178120 View Count: 134 |
 Actinolite : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2 |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA
Actinolite ps. Diopside from Calumet Iron Mine, Chaffee County, CO, U.S. Specimen measures approximately 2.75 x 2.75 x 2 inches. |
| Photo ID: 230807 View Count: 41 |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA
Size: 9 X 4 cm
Collection and photo : Arliguie M |
| © Arliguie M | Photo ID: 89794 View Count: 286 |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA
17.2 x 11.6 x 9.8 cm. This large cabinet specimen comes with a Gary Hansen label. It is a rich example of Colorado uralite, the name given pseudomorphs of hornblende group minerals, mainly actinolite, after a pyroxene group mineral. Here, you have blocky actinolite pseudomorphs after diopside crystals, richly covering the whole side of the ... |
| © Rob Lavinsky | Photo ID: 114613 View Count: 205 |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA
Uralite after Actinolite and after Diopside - 7x4x2,5cm - April of 2008 |
| © Martins da Pedra | Photo ID: 161251 View Count: 173 |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA
Uralite, Diopside and Actinolite micro specimen. FOV 30 mm. Photo and collection Pedro González. Equipment Olympus E-500 with Vivitar 90 mm. macro. |
| © Pedro González | Photo ID: 163344 View Count: 167 |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA
Width of field 2 cm. Collection of and photo by Jesse Crawford. Compositing program CombineZP. Equipment Nikon D-70 digital with macro lens. |
| © 2008 Jesse Crawford | Photo ID: 199402 View Count: 114 |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA
Crystals up to 7mm - April of 2008 |
| © Martins da Pedra | Photo ID: 220095 View Count: 110 |
