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SOME POINTERS:
Photos typically include their locations, so you can use locations as keywords too. You get more hits with shorter words, and fewer hits as you become increasingly specific with increasing numbers of keywords. It’s best to use singular rather than plural (eg “volcano” instead of “volcanoes”).
As some words are included in others (“salt” within “basalt,” for example) you might want to be more specific to avoid getting a bunch of irrelevant photos.
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Weathering rind in andesite.
Chemical weathering rind (oxidation + hydrolysis) of andesite hand sample, (110608-72)
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Galena crystals
Galena crystals, with their characteristic cubic habit. Lead-sulfide. (110608-43)
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Malachite and Azurite
Malachite (green) and Azurite (blue). both copper carbonate minerals. (110608-33)
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Cleavage and bedding in sedimentary rock (Vertical)
Cleavage and bedding in pebble conglomerate and sandstone, Oregon. (110531-7)
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fluvial cross-bedding in sandstone.
Small-scale cross-bedding in sandstone. Photo is about 75 cm across. (110528-61)
Download ImagePaleosols of John Day Formation, OR
Eroded ash beds and ancient soils (paleosols) of the Oligocene John Day Formation, Oregon. John Day Fossil Beds National Monument. (110531-73)
Download ImageWhite asbestos: chrysotile. (vertical)
White asbestos, (chrysotile, a magnesium silicate).
Download ImageAngle of repose (vertical)
Angle of repose: gravel and sand being deposited atop a cone of aggregate from a conveyor belt. (110531-91)
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