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richardgibson.bsky.social
Richard Gibson
@richardgibson.bsky.social
520 followers 230 following 240 posts
Geologist (gravity & magnetics, tectonics), mineral collector, old cycler in Butte, Montana USA. Author "What Things Are Made Of," "History of Earth Perpetual Calendar." ⚒️ #geology posts: https://richardigibson.substack.com . Equality for all, no MAGA.
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richardgibson.bsky.social
#MineralMonday Gypsum and tridymite on clinker (rock metamorphosed by natural coal fires), Powder River Basin, Wyoming USA. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
November 24, 2025 at 4:01 PM
richardgibson.bsky.social
#MineralMonday Faden quartz, Pakistan. richardigibson.substack.com/p/faden-quartz
⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
Faden Quartz
A thread
richardigibson.substack.com
November 17, 2025 at 2:53 PM
richardgibson.bsky.social
Non- #MineralMonday Man-made taconite pellets, compressed pulverized iron ore, collected at a mine in Upper #Michigan in 1967. The #EdmundFitzgerald had 26,000 tons more than this 50 years ago today. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
November 10, 2025 at 4:14 PM
richardgibson.bsky.social
#MineralMonday #Copper pseudomorph after pseudohexagonal aragonite twin, Corocoro, Bolivia. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
November 3, 2025 at 3:25 PM
richardgibson.bsky.social
#MineralMonday Mimetite, wulfenite, and adamite from Ojuela, Mexico at The Geologic Column today. richardigibson.substack.com/p/ojuela ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
Ojuela
A world-class locality
richardigibson.substack.com
October 27, 2025 at 2:08 PM
richardgibson.bsky.social
#MineralMonday Youngite = brecciated agate and/or jasper + chalcedony. 4 x 4 cm. Fluorescent. Guernsey, Wyoming USA ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
October 20, 2025 at 4:03 PM
richardgibson.bsky.social
#NoKings in #Butte
indivisiblebutte.bsky.social Indivisible Butte @indivisiblebutte.bsky.social · Oct 18
Today's #NoKings rally in #Butte #Montana seemed larger than the one in June.
October 18, 2025 at 7:47 PM
richardgibson.bsky.social
#MineralMonday Topaz, red with rutile inclusions. 7 x 6 cm. Tepetate, San Luis Potosi, Mexico ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
October 13, 2025 at 3:24 PM
richardgibson.bsky.social
#MineralMonday Barite, Cerro Warihuyn, Miraflores, Huamalies Prov., Huanuco, Peru. 88 mm. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
October 6, 2025 at 2:44 PM
richardgibson.bsky.social
#MineralMonday Calcite, Rensselaer, Indiana USA, 8 cm wide. The brown coating is from petroleum in the host rock. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
September 29, 2025 at 3:09 PM
richardgibson.bsky.social
Equinox sun and Rock of the Day. Today's bike ride. richardgibsonphotos.substack.com/p/equinox-sun
Equinox sun
and rock of the day
richardgibsonphotos.substack.com
September 23, 2025 at 10:19 PM
richardgibson.bsky.social
#MineralMonday #Gold octahedron 0.8 mm, on quartz, Ouray Mining District, Colorado. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
September 22, 2025 at 2:51 PM
richardgibson.bsky.social
#MineralMonday Quartz pseudomorphs after anhydrite, Rio Grande do Sul, Brazil. Longest blade 10.5 cm, on quartz with green celadonite in basalt vug. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
September 15, 2025 at 3:09 PM
richardgibson.bsky.social
#MineralMonday Calcite, butterfly/knee/heart twins, attrib to Frizington, Cumbria, England. Probably mined before 1910; some tiny hematite inclusions. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
September 8, 2025 at 3:49 PM
richardgibson.bsky.social
#MineralMonday Cristobalite “snowflakes” in obsidian, Arizona USA. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
September 1, 2025 at 3:09 PM
richardgibson.bsky.social
#MineralMonday Malachite, Mud Springs Range, New Mexico USA. 1.5 mm. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
August 25, 2025 at 8:51 PM
richardgibson.bsky.social
#MineralMonday Erythrite, Sonora, Mexico. Cobalt arsenate, Co3(AsO4)2 · 8H2O. Field of view approx. 1 cm. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
August 18, 2025 at 3:21 PM
richardgibson.bsky.social
#MineralMonday Smoky Quartz, Switzerland, approx. 2 cm. Unusual faces are probably trapezohedrons or steep rhombohedrons. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
August 11, 2025 at 4:40 PM
richardgibson.bsky.social
#MineralMonday Xocomecatlite (green), Trixie Mine, Utah USA. More here, with gold: richardigibson.substack.com/p/xocomecatl... ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
August 4, 2025 at 1:46 PM
richardgibson.bsky.social
Wednesday's Whitehall #Montana speaker is Betsy Brandborg from Friends of the Third Branch. On keeping Montana's courts nonpartisan! #Indivisible
indivisiblebutte.bsky.social Indivisible Butte @indivisiblebutte.bsky.social · Jul 29
From our friends at #Indivisible Whitehall #Montana Wednesday's speaker, July 30, 6:00-7:30 pm, Whitehall School Library, is Betsy Brandborg from Friends of the Third Branch. On keeping Montana's courts nonpartisan!
July 29, 2025 at 12:30 AM
richardgibson.bsky.social
#MineralMonday Uraninite, Spruce Pine, North Carolina USA, cube with malformed dodecahedrons, 1 cm.⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
July 28, 2025 at 2:06 PM
richardgibson.bsky.social
#MineralMonday Star muscovite (twins), 3 cm high. Jenipapo pegmatite, Itinga, Minas Gerais, Brazil. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
July 21, 2025 at 1:37 PM
richardgibson.bsky.social
Good Trouble in #Butte
indivisiblebutte.bsky.social Indivisible Butte @indivisiblebutte.bsky.social · Jul 18
GOOD TROUBLE in #Butte #Montana . In honor of Civil Rights Leader and Congressman John Lewis on the 5th anniversary of his passing, to defend democracy and carry forward his legacy of making #GoodTrouble for meaningful change. #Indivisible
Photo shows many people on the steps of the Butte-Silver Bow County Court House, carrying signs that read "Make some good trouble," "Solidarity," "Hands off our Democracy," "Enough," "With Liberty and Justice for All," and many more.
July 18, 2025 at 1:04 AM
richardgibson.bsky.social
#MineralMonday For #Bastille Day, malachite pseudomorph after cuprite (octahedrons and dodecahedrons), Chessy, France, 13x10 mm ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
July 14, 2025 at 2:34 PM
richardgibson.bsky.social
Rocks for International Rock Day richardgibsonphotos.substack.com/p/internatio...
International Rock Day
Here are some rocks
richardgibsonphotos.substack.com
July 13, 2025 at 7:38 PM