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Bermanite : Mn2+(H2O)4[Mn3+2(OH)2(PO4)2], Robertsite : Ca3Mn3+4[(OH)3|(PO4)2]2 · 3H2O | |
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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA Reddish plates, forming a group 0.3 mm across, on Robertsite. Robert Meyer specimen and photo. |
| © 2004 ROM | Photo ID: 14947 View Count: 697 |
Bermanite : Mn2+(H2O)4[Mn3+2(OH)2(PO4)2] | |
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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA Red bermanite -- view is about 5 mm across. P. Cristofono specimen and photo. |
| © 2007 Peter Cristofono | Photo ID: 120712 View Count: 120 |
Bermanite : Mn2+(H2O)4[Mn3+2(OH)2(PO4)2] | |
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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA Width of field is 1.8 mm. Collection of Jesse Crawford. The depth of field has been enhanced using Helicon Focus (12 exposures). Equipment: Nikon D-100 on a homemade microscope. |
| © 2008 Jesse Crawford | Photo ID: 174589 View Count: 105 |
Collinsite : Ca2(Mg,Fe2+)[PO4]2 · 2H2O | |
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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA 1.3mm spray of collinsite on fluorapatite. JBS specimen and photo. |
| © JBS 2006 | Photo ID: 79341 View Count: 249 |
Collinsite : Ca2(Mg,Fe2+)[PO4]2 · 2H2O | |
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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA Field of view is 2.5 mm. Collection of Jesse Crawford. The depth of field has been enhanced using Helicon Focus (21 exposures). Equipment: Nikon D-100 on a homemade microscope. |
| © 2008 Jesse Crawford | Photo ID: 172702 View Count: 79 |
Collinsite : Ca2(Mg,Fe2+)[PO4]2 · 2H2O | |
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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA White crystals of Collinsite on matrix from the Tip Top mine, Custer co., South Dakota, USA. Field of view: 3 cm. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 151015 View Count: 127 |
Collinsite : Ca2(Mg,Fe2+)[PO4]2 · 2H2O | |
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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA 1 mm colorless/white collinsite crystals. P. Cristofono specimen and photo. |
| © 2007 Peter Cristofono | Photo ID: 120848 View Count: 94 |
Collinsite : Ca2(Mg,Fe2+)[PO4]2 · 2H2O | |
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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA size: 3x5cm. Paul Bongaerts specimen and photograph |
| © Paul Bongaerts | Photo ID: 24798 View Count: 374 |
Ehrleite : Ca4Be3Zn2[PO4]6 · 9H2O | |
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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA A 1 mm aggregate of Ehrleite crystals from the type locality, the Tip Top mine, Custer co., South Dakota, USA. From the type specimen. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 65495 View Count: 436 |
Englishite : K3Na2Ca10Al15[OH|(PO4)3]7 · 26H2O, Whitlockite : Ca9Mg[PO3OH][PO4]6, Robertsite : Ca3Mn3+4[(OH)3|(PO4)2]2 · 3H2O | |
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Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA Rosettes of colourless englishite crystals to about 1 mm, with greyish white whitlockite on dark red robertsite. Field width: 9 mm. P Haas photograph and collection (no. 74-060). |
| © Peter Haas | Photo ID: 28948 View Count: 643 |
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