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Antigorite : (Mg,Fe2+)3[(OH)4|Si2O5], Chrysotile : Mg3Si2O5(OH)4 | |
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Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster Co., Pennsylvania, USA Long, lath-like crystals of green antigorite with lighter, brownish fibers on the surface where the antigorite has altered to asbestos. Overall size of mineral specimen: 11x5x2 cm. Size of individual crystals: 1-11 cm. |
| © 2002 John H. Betts | Photo ID: 5886 View Count: 665 |
Antigorite : (Mg,Fe2+)3[(OH)4|Si2O5] | |
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Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster Co., Pennsylvania, USA 42 mm specimen. Photograph by Peter Cristofono. |
| © 2006 Peter Cristofono | Photo ID: 71183 View Count: 219 |
Antigorite (Var: Picrolite) : (Mg,Fe2+)3[(OH)4|Si2O5] | |
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Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster Co., Pennsylvania, USA Specimen of Antigorite var. Picrolite. From the Cedar Hill Quarry, Fulton Township, Lancaster Co., Pennsylvania. Specimen size: 6.5 x 5cm. From the PA Annex of my personal collection, acquired in 2003. |
| © M.Heintzelman | Photo ID: 17392 View Count: 1067 |
Antigorite (Var: Picrolite) : (Mg,Fe2+)3[(OH)4|Si2O5] | |
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Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster Co., Pennsylvania, USA A very well-formed and large (for its species), crystal of the Serpentine group mineral, Antigorite. The varietal name Picrolite refers to the columnar variety of this mineral, which is only found in seven locations worldwide, six of which are in the US and one locality in the Slovak Republic. A fine example of an unusual mineral from a classic ... |
| © Russell G. Rizzo | Photo ID: 189692 View Count: 141 |
Brucite : Mg(OH)2 | |
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Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster Co., Pennsylvania, USA Foliated crystals of Brucite exhibiting pseudo hexagonal crystal edging. From the Cedar Hill Quarry, Fulton Township, Lancaster Co., Pennsylvania. Specimen size: 7.5 x 4.5cm. From the PA Annex of my personal collection, acquired in 2003. |
| © M.Heintzelman | Photo ID: 14923 View Count: 557 |
Brucite : Mg(OH)2 | |
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Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster Co., Pennsylvania, USA Thin tabular hexagonal crystals of Brucite averaging 0.7 mm long. Robert O. Meyer specimen and photograph. |
| © 2004 ROM | Photo ID: 16185 View Count: 442 |
Brucite : Mg(OH)2 | |
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Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster Co., Pennsylvania, USA 0.6 cm crystal. S406-095 #1011# Note a little bit of orange desaultelsite. |
| © 2007, JGW | Photo ID: 139979 View Count: 112 |
Brucite : Mg(OH)2 | |
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Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster Co., Pennsylvania, USA A 4 cm crystal. Note orange rind of possible desautelsite on one face. S390-30 #161# |
| © 2007, JGW | Photo ID: 139980 View Count: 92 |
Desautelsite : Mg6Mn3+2[(OH)16|CO3] · 4H2O, Brucite : Mg(OH)2 | |
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Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster Co., Pennsylvania, USA Golden-brown flaky crystals of desautelsite, on brucite, from one of the two type localities for the mineral. 0.2 cm field of view. S415-94 #1869# |
| © 2008, JGW | Photo ID: 168169 View Count: 121 |
Deweylite : Mg4Si3O10·6H2O ? | |
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Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster Co., Pennsylvania, USA A large resinous mass of deweylite, 10 cm. S402-191 #747# |
| © 2007, JGW | Photo ID: 142528 View Count: 162 |
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