Photomicrograph of adularia in silver-gold ore in rhyolite, s... (1)

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- Photomicrograph of adularia in silver-gold ore in rhyolite, s... -

Photo id: 265083 - Photomicrograph of adularia in silver-gold ore in rhyolite, s...

Photomicrograph of adularia in silver-gold ore in rhyolite, showing normal occurrence, crystallization and habit. The smooth light colored areas are quartz; the black are argentite and pyrite; plain light; magnified 380 diameters. Elko County, Nevada. 1920. Plate 11-A in U.S. Geological Survey. Bulletin 741. 1923. - ID. Schrader, F.C. 1702q - sfc1702q - U.S. Geological Survey - Public domain image
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Immagini trovate: 1

1 Photomicrograph of andalusite grains in mica schist: Hall Mou... [241]

2 Photomicrograph of andesine-augite gneiss, showing texture of... [694]

3 Photomicrograph of basic pyroxene hornfels, showing texture a... [1047]

4 Photomicrograph of biotite latite porphyry of group 10 from d... [404]

5 Photomicrograph of bostonite of group 9 from dike, 750 feet n... [435]

6 Photomicrograph of brecciated quartz: cemented by ankerite, t... [253]

7 Photomicrograph of brecciated quartz: cemented by chalcedony,... [629]

8 Photomicrograph of cordierite gneiss, the chief constituents ... [247]

9 Photomicrograph of diallage crystal in gabbro, showing rims o... [256]

10 Photomicrograph of dikelet in phyllite, note lack of micaceou... [314]

AVG: 331.421 (709)