Just left of center is a colorless dodecahedron of paulingite-K surrounded by colorless clinoptilolite-Ca. The yellow cluster to the right is phillipsite-K coated with an amorphous iron silicate. These are found in boulders dredged from the Columbia River during construction of the Rock Island Dam. This is the type locality for paulingite-K. A search to find it the source of the boulders was not successful.

Paulingite-K (K,Ca,Na,Ba,☐)₁₀(Si,Al)₄₂O₈₄·34H₂O
Phillipsite-K K₆(Si₁₀Al₆)O₃₂·12H₂O
Clinoptilolite-Ca (K,Ca,Na,Ba,☐)₁₀(Si,Al)₄₂O₈₄·34H₂O
Rock Island Dam, Douglas Co., Washington, USA
FOV = 3.53 mm
#806
NFS
#minerals #mineralogy #geology #earthscience

Group of colorless phillipsite-K crystals on a black clay with greenish yellow clay mineral. These are found on boulders dredged from the Columbia River during construction of the Rock Island Dam.

Phillipsite-K K₆(Si₁₀Al₆)O₃₂·12H₂O
Rock Island Dam, Douglas Co., Washington, USA
FOV = 1.58 mm
#803
NFS
#minerals #mineralogy #geology #earthscience

Blocky colorless clinoptilolite-Ca crystals that have grown on erionite-K crystals. The yellow spots are an amorphous iron silicate. These are found in boulders dredged from the Columbia River during the construction of the Rock Island Dam.

Clinoptilolite Ca₃(Si₃₀Al₆)O₇₂·20H₂O
Rock Island Dam, Douglas Co., Washington, USA
FOV = 1.07 mm
#799
NFS
#minerals #mineralogy #geology #earthscience

Group of white calcite crystals on a black clay mineral in basalt.

Calcite Ca(CO₃)
Beaver Valley Quarry, Jefferson Co., Washington, USA
FOV = 5.26 mm
#2004
NFS
#minerals #mineralogy #geolgy #earthscience

Three horizontal waveform graphs in blue, red, and green showing seismic data from Westport, CT, with time on the x-axis and amplitude on the y-axis. HHZ = vertical HH1 = North/South HH2 = East/West

Map showing southern Connecticut including New Haven, Bridgeport, and surrounding towns near Long Island Sound.

A couple of small Connecticut earthquakes showed up on the seismic equipment at the Westport Observatory this morning, 3/15. You can see the 2.1M and 1.9M blips at 8:21AM and 8:26AM on the right side of the graph. patch.com/connecticu...

#Earthquake #Connecticut #USGS #EarthScience #WestportCT

Want another reason to attend Earth Science for Society? How about the door prizes! Thank you to all of these amazing door prize sponsors. For your chance to win, come visit us March 15-17 at MacEwan Hall at the University of Calgary. Admission is FREE!

#earthscience #scicomm #geoscience #thankyou

More than 500 Houston-area kids came to explore activities galore, from the Earth's Core to the outer limits of our Solar System.

Read more: news.rice.edu/news/2026/mo...

#Outreach #RiceUniversity #RSTEM #Ricespaceinstitute #Astronomy #EarthScience #MarsExporation #Climate #K-12 #Earthquakes

Volcano Watch — Episode 43, new fountain height record and tephra fallout on communities Episode 43 at the summit of Kīlauea began at 9:17 a.m. HST on March 10, 2026, and continued for 9 hours. Both the north and south vents erupted lava fountains, with the south vent fountain reaching 17...

Shared on behalf of the USGS: HVO Volcano Watch for March 12, 2026
#volcano #earthscience #geology #science

"Episode 43, new fountain height record and tephra fallout on nearby communities"

www.usgs.gov/observatorie...

Introducing the New EIC of Paleoceanography and Paleoclimatology - Eos We are delighted to announce that Sarah Feakins has just taken over as Editor-in-Chief of Paleoceanography and Paleoclimatology.

AGU is thrilled to welcome Sarah Feakins as the new Editor-in-Chief of Paleoceanography and Paleoclimatology.🎉

In @eos.org, we asked Dr. Feakins some questions about her own research interests and her vision for the journal.

🔗 buff.ly/JIxneWC

#AGUPubs #Paleoclimate #STEM #EarthScience #Publishing

We’re proud to share that Earth System Geophysics by Steven R. Dickman has been named a 2026 PROSE Award Finalist in the Earth Science category. 🌍

A strong recognition of its impact in the field.

Explore the book here: https://ow.ly/hQMr50Yr8FT

#PROSEAwards #EarthScience #Geophysics #Wiley

Making paper models is great for practicing #finemotorskills, learning vocabulary & understanding processes, all while being very proud of what you made!
Find out more about our Structure of a #Volcano paper model here: buff.ly/K0MTNvz

#EduSky #volcanoes #igneousrocks #earthscience #geology

When Worlds Quake: The Quest to Understand the Interior of Earth and Beyond by Hrvoje Tkalčić

When Worlds Quake by Hrvoje Tkalčić reveals how quakes can help scientists to understand the mysterious inner architecture and ongoing evolution of our planet, as well as worlds beyond our own.

Now available worldwide!

Learn more:
press.princeton.edu/books/hardco...

#EarthScience #Earthquakes

The summers of today are vastly different to those of our grandparents Australia has always been hot. On average, summer is now one degree warmer than it was 50 years ago. But that number hides the stark reality that the summers our kids experience today are much more ex...

Yes, I'm biased. But I feel this analysis of the data offers some fresh insights into how we experience #climatechange.
And a definitive answer to "but Australia has always been hot..."
#ClimateScience #ClimateResearch #ClimateNews #ClimateData #DataViz #earthscience
www.abc.net.au/news/2026-03...

See Hawaii’s Kīlauea volcano erupt with lava fountains shooting 1,300 feet into the air Over nine hours, Kīlauea released 16 million cubic yards of lava and sent a cloud of ash beyond 30,000 feet

See Hawaii’s Kīlauea volcano erupt with lava fountains shooting 1,300 feet into the air. Via @live_science #seismology #EarthScience #RocksForJocks #Geology #Volcanology 🌋

Kilauea Lava Fountains Reach 1,000 Feet, Prompting Park and Highway Closures The latest Kilauea lava fountains surged to roughly 1,000 feet (300 meters) on Tuesday, according to officials monitoring the eruption

Lava fountains from Hawaii’s Kilauea volcano reached about 1,000 feet, prompting temporary closures near the summit crater as ash and volcanic debris fell across nearby areas.

#Kilauea #Volcano #Hawaii #Lava #EarthScience

STOP: The 1962 Secret That Broke Earth’s Shield 🌌
Journey into the Cold War test that lit up the night sky shook the magnetosphere and changed space forever. 🚀🛰️
https://youtu.be/FJyA4XszMdA
#SpaceHistory #ColdWar #EarthScience #StarfishPrime

Watching the current fountaining episode of Kilauea. The V1 camera has been replaced and has a microphone. The wind has been blowing tephra in its direction and you can hear it falling.
#Kilauea #earthscience #geology

Near the center are several copper wires. They form the loop that is covered by a clay family mineral. Found in the Crescent Formation east of the Olympic Mountains. Collected by me on i June 1991.

Copper Cu
Beaver Valley Quarry, Jefferson Co., Washington, USA
FOV = 1.59 mm
#1782
NFS
#minerals #mineralogy #geolgy #earthscience

Copper exhibiting a right-angle change in growth direction. The copper is on a clay group mineral and is found in basalt of the Crescent Formation east of the Olympic Mountains.

Copper Cu
Beaver Valley Quarry, Jefferson Co., Washington, USA
FOV = 1.26 mm
#1627
NFS
#minerals #mineralogy #geolgy #earthscience

Four white lévyne series crystals on a green clay mineral. Collected by me on 1 June 1991.

Lévyne Series
Beaver Valley Quarry, Jefferson Co., Washington, USA
FOV = 3.53 mm
#1611
NFS
#minerals #mineralogy #geolgy #earthscience

Two spheres of radiating cowlesite crystals on a green clay mineral. Zeolites are abundant in boulders scraped off the top of an Eocene basalt flow in order to make the logging road along Big Tree Creek, 3.8 miles east of the railroad tracks in Yacolt, Clark County, Washington. Boulders and dirt was piled along the south side of the road and into the trees making finding the boulders and collecting in them difficult. No rock cut was found containing the same mineralization. The site was found by Jim Babcock of Vancouver, Washington and was made known to other collectors by Vi Frazer. Like most logging roads, the area is closed to collecting and gated. Collected by me on 7 May 1989.

Cowlesite Ca(Al₂Si₃)O₁₀·5-6H₂O
Big Tree Creek, Yacolt, Clark Co., Washington, USA
FOV = 3.27 mm
#1604
NFS
#minerals #mineralogy #geology #earthscience

White cluster of cowlesite crystals on a green clay mineral. At the left and right edge are clusters of a colorless heulandite group mineral. Zeolites are abundant in boulders scraped off the top of an Eocene basalt flow in order to make the logging road along Big Tree Creek, 3.8 miles east of the railroad tracks in Yacolt, Clark County, Washington. Boulders and dirt was piled along the south side of the road and into the trees making finding the boulders and collecting in them difficult. No rock cut was found containing the same mineralization. The site was found by Jim Babcock of Vancouver, Washington and was made known to other collectors by Vi Frazer. Like most logging roads, the area is closed to collecting and gated. Collected by me on 7 May 1989

Cowlesite Ca(Al₂Si₃)O₁₀·5-6H₂O
Big Tree Creek, Yacolt, Clark Co., Washington, USA
FOV = 3.27 mm
#1604
NFS
#minerals #mineralogy #geology #earthscience

White hexagonal prisms of fluorapatite with brown dendrites associated with dark green clinochlore and quartz. The location given is how Mindat lists it. This is not from the main quartz collecting area but from a small roadcut some distance up the road from the quartz area. These must be etched out of calcite filling the cavities in the rock. Collected by me on 8 July 1989. Vinegar was used to etch the calcite thus leaving the fluorapatite.

Fluorapatite Ca₅(PO₄)₃F
Hansen Creek Crystal Area, Hansen Creek, Snoqualmie Mining District, King Co., Washington, USA
FOV = 2.93 mm
#1596
NFS
#minerals #mineralogy #geology #earthscience

Very pale yellow anatase crystal at center with rutile needles to the left of it. The skeletal remains of a titanite crystal are on the right of the anatase with dark green clinochlore at right edge. The location given is how Mindat lists it. This is not from the main quartz collecting area but from a small roadcut some distance up the road from the quartz area. These must be etched out of calcite filling the cavities in the rock. Collected by me on 8 July 1989.

Anatase TiO₂
Hansen Creek Crystal Area, Hansen Creek, Snoqualmie Mining District, King Co., Washington, USA
FOV = 1.45 mm
#1593
NFS
#minerals #mineralogy #geology #earthscience

Green clusters of clinochlore on quartz crystals. The location given is how Mindat lists it. This is not from the main quartz collecting area but from a small roadcut some distance up the road from the quartz area. These must be etched out of calcite filling the cavities in the rock.

Clinochlore Mg₅Al(AlSi₃O₁₀)(OH)₈
Hansen Creek Crystal Area, Hansen Creek, Snoqualmie Mining District, King Co., Washington, USA
FOV = 1.71 mm
#1631
NFS
#minerals #mineralogy #geology #earthscience

How Radar Reveals the Hidden Fabric of Ice Sheets - Eos A new review describes how measuring the polarization of radar waves in ice reveals glacier crystal structure, with implications for understanding past and future ice flow and sea-level rise.

A new #AGUPubs article describes how measuring the polarization of #radar waves in ice reveals glacier crystal structure, with implications for understanding past and future ice flow and sea-level rise.

🔗Learn more in @eos.org: buff.ly/XF34tNd

#Glaciers #EarthScience @reviewsgeophysics.bsky.social

🏛️🌎 Scientists: Take your voice to Capitol Hill! Apply for Congressional Visits Day (Apr 21–22) with American Geophysical Union.

Deadline Mar 15!

🔗 bit.ly/3NeJQEG

#AmericanGeosciences #SciencePolicy #SciAdvocacy #EarthScience #STEM @agu.org

Did you know #fracking first started in the 1860's? Learn how fracking works with our paper model & why it's controversial. Find out more here: buff.ly/rVUQzYJ

#EduSky #naturalgas #crudeoil #environmentalscience #scienceteacher #geography #geographyteacher #earthscience

Group of yellow thomasclarkite-(Y) crystals on a black and white matrix. The white patches on the thomasclarkite-(Y) are due to dehydration. The Poudrette Quarry is the type locality for thomasclarkite-(Y).

Thomasclarkite-(Y) NaY(HCO₃)(OH)₃·4H₂O
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 2.56 mm
#4029
NFS
#minerals #geology #earthscience #mineralogydouglasmerson197@gmail.com

Pale tan cluster of titanite crystals on a white matrix.

Titanite CaTi(SiO₄)O
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.21 mm
#4028
NFS
#minerals #geology #earthscience #mineralogy