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Photos recently added to NH species galleries, set #170. |
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Species: TOPAZ Locality: South Percy Peak, Stratford, NH Specimen Size: 3.7 cm crystal Field Collected: Bob Janules Catalog No.: A Bob Janules specimen and photo Notes: Collected in the early 90's from the rainbow pocket. |
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Species: TOPAZ Locality: South Percy Peak, Stratford, NH Specimen Size: 3.5 cm crystal Field Collected: Bob Janules Catalog No.: A Bob Janules specimen and photo Notes: Collected in the early 90's from the rainbow pocket. |
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Species: TOPAZ Locality: South Percy Peak, Stratford, NH Specimen Size: 1.8 cm crystal Field Collected: Bob Janules Catalog No.: A Bob Janules specimen and photo Notes: Collected in the early 90's from the rainbow pocket. |
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Species: TOPAZ Locality: South Percy Peak, Stratford, NH Specimen Size: 2.6 cm crystal, multiple views. Field Collected: Bob Janules Catalog No.: A Bob Janules specimen and photo Notes: Collected in the early 90's from the rainbow pocket. |
Species: HYDROXYLHERDERITE Locality: Fletcher Mine, Groton, NH Specimen Size: 1.4 cm crystal Field Collected: Ralph Lingard Catalog No.: A Bob Janules specimen and photo Notes: [bj] These were collected by Ralph Lingard many years ago. He gave them to me. I recalled he had a lot of them in a glass jar. |
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Species: HYDROXYLHERDERITE Locality: Fletcher Mine, Groton, NH Specimen Size: 1.5 cm crystal Field Collected: Ralph Lingard Catalog No.: A Bob Janules specimen and photo Notes: [bj] These were collected by Ralph Lingard many years ago. He gave them to me. I recalled he had a lot of them in a glass jar. |
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Species: HYDROXYLHERDERITE Locality: Fletcher Mine, Groton, NH Specimen Size: 1.4 cm and 1.5 cm crystals Field Collected: Ralph Lingard Catalog No.: A Bob Janules specimen and photo Notes: [bj] These were collected by Ralph Lingard many years ago. He gave them to me. I recalled he had a lot of them in a glass jar. |
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Species: GOYAZITE on Quartz crystal Locality: Palermo Mine, Groton, NH Specimen Size: 5 mm goyazite crystal on 2.5 cm quartz crystal Field Collected: Bob Janules Catalog No.: A Bob Janules specimen and photo Notes: This is a very large goyazite crystal ! |
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Species: FAIRFIELDITE Locality: Palermo Mine, Groton, NH Specimen Size: 2.0 mm field of view Field Collected: Clayton Ford Catalog No.: u2650 Notes: I am labeling this as fairfieldite. A single isolated crystal in a vug on lumpy jahnsite. With just a single crystal, I will never be certain, fairfieldite or messelite. Fletcher does have a lot of bermanite, a Mn phosphate. The decoration with small jahnsite and rockbridgeite balls adds interest. |
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Species: JAHNSITE Group Locality: Palermo Mine, Groton, NH Specimen Size: 3.2 mm field of view Field Collected: Clayton Ford Catalog No.: u2650 Notes: This lumpy ball form of jahnsite is common in Groton, NH pegmatites. Two high count, polished grain, EDS analyses indicated a chemistry of (4 P normalization): BC453A: Ca0.73(Fe1.96,Mn0.36)Σ2.57Mg0.56Al0.07P4O26 BC453: Ca1.13(Fe1.81,Mn0.57)Σ2.53Mg0.38K0.02P4O30.3 With Fe > Mn and Mg present, jahnsite group members jahnsite-(CaFeMg) or jahnsite-(CaMnMg) are suggested. I suspect intermediate compositions between these two defined species are allowed, which would best fit the BC453 chemistry. |