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Photos recently added to NH species galleries, set #136. | |
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Species: PHOSPHURANYLITE Locality: Ruggles Mine, Grafton, NH Specimen Size: 1.3 mm field of view and 0.9 mm zoom view Field Collected: Harvard research Catalog No.: u2375 Notes: These small crystals have a thin rectangular bladed habit, typical for the species. Used low temperature LED light source for these photos as I did not want to heat them in any way. Phosphuranylite contains a lot of water. No, these do not fluoresce. Differentiating phosphuranylite from uranophane (and uranophane-beta) visually is very risky. All three can present as orthorhombic appearing yellow crystals. EDS can easily resolve this, as phosphuranylite is a phosphate and uranophane (& beta) are silicates. Both uranophane and phosphuranylite are reported from Ruggles. These crystals are in thin seams in fluorapatite, a mineral containing both P and Ca, required for phosphuranylite. Testing planned. |
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Species: PHOSPHURANYLITE Locality: Ruggles Mine, Grafton, NH Specimen Size: 1.1 mm field of view and zoom view of lower left area Field Collected: Harvard research Catalog No.: u2375 Notes: Lots of "crud" on these crystals, but reluctant to put in ultrasonic. |
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Species: URANOPHANE Locality: Ruggles Mine, Grafton, NH Specimen Size: 0.4 mm uranophane spray Field Collected: Harvard research Catalog No.: u2377 Notes: The few scattered orthorhombic prisms are likely phosphuranylite. Uranophane and uranophane-beta are chemically equivalent, monoclinic, dimorphs. Presently (2020) these are grouped together as uranophane. |
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Species: URANOPHANE Locality: Ruggles Mine, Grafton, NH Specimen Size: 4 mm field of view Field Collected: Harvard research Catalog No.: u2377 Notes: |
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Species: ZIRCON Locality: Ruggles Mine, Grafton, NH Specimen Size: 1.5 mm zircon crystal Field Collected: Harvard research Catalog No.: u2377 Notes: Edge-view greenish autunite plate to lower right of zircon crystal. |
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Species: AUTUNITE Locality: Ruggles Mine, Grafton, NH Specimen Size: 1.5 mm autunite plate group, daylight & SW UV photos Field Collected: Harvard research Catalog No.: NC Notes: |
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Species: AUTUNITE Locality: Ruggles Mine, Grafton, NH Specimen Size: 1.2 mm autunite plate group Field Collected: Harvard research Catalog No.: u2374 Notes: |
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Species: MONTMORILLONITE Locality: Ruggles Mine, Grafton, NH Specimen Size: 3 mm field of view. Pink, soft (clay-like) montmorillonite Field Collected: Bob Whitmore & Harvard research associates Catalog No.: u2376 Notes: A voucher specimen for montmorillonite at Ruggles. Montmorillonite is listed for Ruggles. |
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Species: MONTMORILLONITE Locality: Ruggles Mine, Grafton, NH Specimen Size: 9 cm specimen with pink, soft (clay-like) montmorillonite and black biotite Field Collected: ex. Bob Whitmore Catalog No.: TBC Notes: Hand-written label has "1950" date. |
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Species: "GUMMITE" Locality: Ruggles Mine, Grafton, NH Specimen Size: 6 cm polished surface gummite specimen Field Collected: Bob Whitmore & Harvard research associates Catalog No.: NC Notes: Orange gummite with black uraninite. Specimen very "hot." Left outside and took daylight photo. |