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Dumortierite : (Al,Fe3+)7[O3|BO3|(SiO4)3], Quartz : SiO2 | |
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Dehesa, Alpine, San Diego Co., California, USA Radiating mass of dark pink dumortierite in colorless quartz. Identification confirmed by X-ray and electron microprobe analysis. |
| © Caltech | Photo ID: 47136 View Count: 1003 |
Dumortierite : (Al,Fe3+)7[O3|BO3|(SiO4)3] | |
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Dehesa, Alpine, San Diego Co., California, USA Harvard Museum of Natural History specimen no. 118299. Label is about 5.5 cm long. P. Cristofono photo. |
| © 2007 Peter Cristofono | Photo ID: 95984 View Count: 171 |
Dumortierite : (Al,Fe3+)7[O3|BO3|(SiO4)3] | |
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Dehesa, Alpine, San Diego Co., California, USA Purple-pink spray of dumortierite, fluorescing white under SW UV light. No reaction under MW and LW. Photo is about 8.6 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2007 | Photo ID: 107108 View Count: 153 |
Dumortierite : (Al,Fe3+)7[O3|BO3|(SiO4)3] | |
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Dehesa, Alpine, San Diego Co., California, USA Specimen size 6x3 cm. Ex Kidwell collection. Specimen and photo Leon Hupperichs. |
| © Leon Hupperichs | Photo ID: 150241 View Count: 137 |
Dumortierite : (Al,Fe3+)7[O3|BO3|(SiO4)3] | |
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Dehesa Dumortierite Deposit (Lehesa Dumortierite Deposit), Dehesa, Alpine, San Diego Co., California, USA Typical specimen from this locality, about a 1 cm field of view, horizontal. Specimen courtesy of Excalibur Mineral Company. S078-31 |
| © 2007, JGW | Photo ID: 138226 View Count: 135 |
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Dehesa, Alpine, San Diego Co., California, USA 60 x 35 mm specimen. Under SWUV, dumortierite fluoresces blue. Visible light image included. RFC FM1861. |
| © 2008 Michael C. Roarke | Photo ID: 151490 View Count: 114 |
Dumortierite : (Al,Fe3+)7[O3|BO3|(SiO4)3] | |
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Dehesa Dumortierite Deposit (Lehesa Dumortierite Deposit), Dehesa, Alpine, San Diego Co., California, USA 20 mm FOV. Left: Normal light, dumortierite is purple. Right: Under SWUV, it fluoresces blue. RFC FM1875. |
| © 2008 Michael C. Roarke | Photo ID: 151843 View Count: 109 |
Dumortierite : (Al,Fe3+)7[O3|BO3|(SiO4)3] | |
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Dehesa Dumortierite Deposit (Lehesa Dumortierite Deposit), Dehesa, Alpine, San Diego Co., California, USA Purple, radiated fibrous on matrix. 2,5 cm the field in photo. In my personal collection. Photo Simone Citon. |
| © Simone Citon | Photo ID: 184977 View Count: 75 |
Dumortierite : (Al,Fe3+)7[O3|BO3|(SiO4)3] | |
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Dehesa Dumortierite Deposit (Lehesa Dumortierite Deposit), Dehesa, Alpine, San Diego Co., California, USA 5.7 x 2.7 x 1.1 cm. Not very attractive, but it is what it is....and is possibly a pseudomorph of dumortierite after tourmaline, in this case. Ex. Chuck Houser Collection. |
| © Rob Lavinsky | Photo ID: 260003 View Count: 7 |
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Dehesa, Alpine, San Diego Co., California, USA Minute crystal of rutile in quartz matrix from the dumortierite locality near Alpine, California. See Pemberton, Minerals of California, 1983, page 171. Photo is about 2.2 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2007 | Photo ID: 121913 View Count: 134 |
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