Category Archives: Geology

The scientific tourist #223 — the Alma King

Seen at the Denver Museum of Nature and Science, it’s the Alma King — a fantastic rhodochrosite specimen…

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The scientific tourist #216 — aquamarine

Aquamarine crystals at the Denver Museum of Nature and Science…

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The scientific tourist #214 — Postosuchus kirkpatricki

Another fine specimen from the Petrified Forest National Park visitor’s center in Arizona…

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The scientific tourist #204 — pyrite

Fool’s gold — it’s not just for gold-hunters anymore…

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The scientific tourist #203 — Swiftcurrent lake

This week’s photo comes to you from Swiftcurrent lake — a beautiful little lake in the Many Glacier region of Glacier National Park in Montana…

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The scientific tourist #202 — Selenite

More crystal goodness from the Houston Museum of Natural Science — this time, you get a nice sample of selenite: Curiously enough, there’s no selenium in selenite — it’s a crystalline form of gypsum, and gets its name from its … Continue reading

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Casual Friday — getting ready for Curiosity

If all goes well, the Mars Science Laboratory rover Curiosity will launch from Florida tomorrow morning (10:25 a.m. Eastern Time, 1525 GMT). JPL put together this video of highlights in the rover’s planned mission…

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The scientific tourist #195 — azurite and malachite

Another image from the excellent geology collection at the Houston (Texas) Museum of Natural Science — this one of a sample of azurite and malachite

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The scientific tourist #192 — bad, bad lands

From the southwest corner of South Dakota comes today’s image for you — a landscape panorama the Badlands…

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The scientific tourist #191 — Glacier tracks

It’s back to Alaska this week, for another look at traces of a glacier’s passage. This shot’s from the Tracy Arm fjord: You can see faults in the rock running roughly vertically. But those horizontal grooves? They’re the tracks of … Continue reading

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