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Antigorite (Var: Bowenite) : (Mg,Fe2+)3[(OH)4|Si2O5] | |
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Conklin quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA Bowenite in marble. Museum of Natural History, Roger Williams Park, Providence, Rhode Island, USA M6799 200802. Specimen is 17 cm tall. |
| © Michael W. Kieron | Photo ID: 198601 View Count: 270 |
Aurichalcite : (Zn,Cu)5[(OH)3|CO3]2 | |
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Conklin quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA View about 3 mm across. Associated with highly corroded chalcopyrite in chlorite schist. |
| © Michael W. Kieron | Photo ID: 2298 View Count: 577 |
Axinite-(Fe) : Ca2Fe2+Al2[OH|BSi4O15] | |
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Conklin quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA Harvard Mineralogical Museum specimen no. 134084. Ex - M. W. Kieron collection. Estimated length of specimen: 3.5 cm. Photograph by Peter Cristofono. |
| © 2007 Peter Cristofono | Photo ID: 101954 View Count: 166 |
Calcite : CaCO3 | |
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Conklin quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA Largest crystal 7mm. |
| © Michael W. Kieron | Photo ID: 2299 View Count: 523 |
Calcite : CaCO3, Goethite : α-Fe3+O(OH) | |
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Conklin quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA 1 to 2 mm calcite crystals on goethite. Ex- J. Reiner collection. P. Cristofono specimen and photo. |
| © 2008 Peter Cristofono | Photo ID: 157635 View Count: 98 |
Chrysotile : Mg3Si2O5(OH)4 | |
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Conklin quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA View is 8 mm across. P. Cristofono specimen and photo. Field collected 2008. |
| © 2008 Peter Cristofono | Photo ID: 192898 View Count: 65 |
Diopside : CaMg[Si2O6] | |
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Conklin quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA 2.5 mm terminated green crystal in quartz. P. Cristofono specimen and photo. Field collected 2008. |
| © 2008 Peter Cristofono | Photo ID: 192793 View Count: 72 |
Diopside : CaMg[Si2O6] | |
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Conklin quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA 3.5 mm pale green terminated crystal. P. Cristofono specimen and photo. Field collected 2008. |
| © 2008 Peter Cristofono | Photo ID: 201483 View Count: 49 |
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Conklin quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA Field of view is about 1 cm across. Ex- J. Reiner collection. P. Cristofono specimen and photo. |
| © 2008 Peter Cristofono | Photo ID: 157634 View Count: 78 |
Heulandite-Ca : (Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O | |
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Conklin quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA Crystals to about 2 mm. P. Cristofono specimen and photo. |
| © 2008 Peter Cristofono | Photo ID: 184249 View Count: 68 |
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