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Almandine : Fe2+3Al2[SiO4]3 | |
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Sturgeon River Pegmatite Quarry, Menominee iron range, Dickinson Co., Michigan, USA A 2mm crystal of almandine from the Sturgeon River Pegmatite Quarry. Collected by Travis Olds on June 29th, 2009. |
| © Travis Olds | Photo ID: 243832 View Count: 16 |
Beryl : Be3Al2Si6O18 | |
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Groveland Mine, Randville, Menominee iron range, Dickinson Co., Michigan, USA A 3.2 cm beryl crystal in quartz from a pegmatite outcrop at the Groveland Mine. Collected by Travis Olds on June 30th, 2009. |
| © Travis Olds | Photo ID: 243841 View Count: 25 |
Beryl : Be3Al2Si6O18 | |
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Groveland Mine, Randville, Menominee iron range, Dickinson Co., Michigan, USA A 1.7cm long crystal of green beryl in quartz from a pegmatite outcrop at the Groveland Mine. Collected by Travis Olds on June 30th, 2009. |
| © Travis Olds | Photo ID: 243847 View Count: 21 |
Beryl : Be3Al2Si6O18 | |
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Groveland Mine, Randville, Menominee iron range, Dickinson Co., Michigan, USA A bent crystal of beryl from a pegmatite outcrop at the Groveland Mine. This piece was given to my by Shawn Carlson who collected it. The crystal is 2.5cm long, and the smaller crystal in the background is roughly 1cm in length. |
| © Travis Olds | Photo ID: 243849 View Count: 20 |
Beryl : Be3Al2Si6O18 | |
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Sturgeon River Pegmatite Quarry, Menominee iron range, Dickinson Co., Michigan, USA A 1.7 cm crystal fragment of green beryl from the Sturgeon River Pegmatite Quarry. At a different angle the crystal exhibits a hexagonal structure. Collected by Travis Olds on June 29th, 2009. |
| © Travis Olds | Photo ID: 243833 View Count: 17 |
Beryl : Be3Al2Si6O18 | |
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Groveland Mine, Randville, Menominee iron range, Dickinson Co., Michigan, USA Two crystals of beryl from a pegmatite outcrop at the Groveland Mine. The largest crystal is 1.7cm long while the smaller is 1.3cm. Collected by Travis Olds on June 30th, 2009. |
| © Travis Olds | Photo ID: 243846 View Count: 16 |
Beryl : Be3Al2Si6O18 | |
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Groveland Mine, Randville, Menominee iron range, Dickinson Co., Michigan, USA A 5mm crystal of beryl from a pegmatite outcrop at the Groveland Mine. This crystal was actually broken in half, but the other half was not as well exposed as this one. Collected by Travis Olds on June 30th, 2009. |
| © Travis Olds | Photo ID: 243844 View Count: 15 |
Goethite : α-Fe3+O(OH) | |
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Chapin Mine, Iron Mountain, Menominee iron range, Dickinson Co., Michigan, USA Black botryoidal specimen found on the poor rock piles in the mid-1960s. Measures 2 1/2" across. Ex-Dr. E.W. Johnson Collection. Now David Johnson Collection. My father attempted to obtain botryoidal hematite specimens from as many Wisconsin/Michigan iron mines as possible. He managed to obtain quite a few in the 1960s-70s. |
| Photo ID: 252461 View Count: 13 | |
Goethite : α-Fe3+O(OH) | |
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Aragon Mine, Menominee iron range, Dickinson Co., Michigan, USA Botryoidal Specimen from this difficult to obtain location. Collected in the mid-1960s from the remaining poor rock piles. Measures 2 1/4" across. Ex-Dr. E.W. Johnson Collection. Now David Johnson Collection. |
| Photo ID: 252081 View Count: 11 | |
Goethite : α-Fe3+O(OH) | |
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Aragon Mine, Menominee iron range, Dickinson Co., Michigan, USA Another botryoidal specimen from this difficult to obtain location. Collected in the mid-1960s from the remaining poor rock piles. Measures 2 1/2" across. Ex-Dr. E.W. Johnson Collection. Now David Johnson Collection. |
| Photo ID: 252086 View Count: 10 | |
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