@richardgibson.bsky.social
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.
#MineralMonday Terminated, brown hübnerite crystals (manganese tungstate), with tetragonal (square) white stolzite (lead tungstate) crystal on left front, quartz on back. 9 mm high, from Black Pine Mine, Montana USA⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
02.03.2026 15:32 — 👍 42 🔁 6 💬 0 📌 0Wow.
26.02.2026 01:14 — 👍 1 🔁 0 💬 0 📌 0
#MineralMonday Thomsonite, calcite, mesolite, Bear Creek Quarry, Drain, Oregon USA, 1-2 mm.⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
23.02.2026 16:00 — 👍 22 🔁 2 💬 0 📌 0
#MineralMonday Yellow brucite, magnesium hydroxide, from Muslim Bagh Ophiolite, Killa Saifulla Dist., Balochistan, Pakistan. 52 mm.⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
16.02.2026 15:33 — 👍 38 🔁 7 💬 0 📌 0
Southwest New Mexico
14.02.2026 20:05 — 👍 1 🔁 0 💬 0 📌 0
Today for the International Day of Women and Girls in Science, I repeat my post about Florence Bascom: ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience richardigibson.substack.com/p/internatio...
11.02.2026 19:38 — 👍 7 🔁 1 💬 0 📌 0Agreed, Tertiary, I think the oil in Spindletop is largely out of the Wilcox Formation and others, perhaps as young as Oligocene.
09.02.2026 19:02 — 👍 2 🔁 0 💬 0 📌 0Actively rising. www.unr.edu/nevada-today...
09.02.2026 17:14 — 👍 2 🔁 1 💬 1 📌 0
#MineralMonday Spessartite garnet, Wushan Mine, Tongbei, Yunxiao County, Zhangzhou Prefecture, Fujian Province, China. Largest crystal about 5 mm.⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
09.02.2026 15:57 — 👍 70 🔁 12 💬 0 📌 1
#MineralMonday Tiny silver crystals in a cavity in native copper, Osceola Mine, Michigan USA. The silver crystals are about 0.5 mm each.⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
02.02.2026 18:24 — 👍 38 🔁 7 💬 2 📌 0
Nevermind the jobs you had, tell me five classes you took in college:
Archery & Bowling
Universal Stage Optical Mineralogy
General Relativity
Advanced Mineralogy
Introduction to Geophysics
That's great, welcome back to the Mountains.
27.01.2026 22:20 — 👍 2 🔁 0 💬 1 📌 0
Despite the awful things happening, the beauty of nature persists. #MineralMonday Scheelite (not fluorite), Yaogangxian Mine, Hunan, China. Largest crystal 5 mm.⚒️ #geology . No MAGA! Science = Resistance! #standupforscience richardigibson.substack.com/p/yaogangxian
26.01.2026 15:48 — 👍 28 🔁 3 💬 1 📌 0Friday 26 Jan. in Butte, Montana USA
22.01.2026 16:14 — 👍 2 🔁 0 💬 0 📌 0
#MineralMonday blue fluorite, inclusions of boulangerite, or jamesonite, or stibnite needles, Yaogangxian Mine, Hunan, China. 50 mm.⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
19.01.2026 15:52 — 👍 53 🔁 11 💬 0 📌 0Geologist/mineralogist by education (1 geophys course); 50-year+ career in gravity & magnetics. When people introduce me as a geophysicist I say "I'm really a geologist." When introduced as a geologist, I say "I work with geophysical data." They are all part of the same package to me.
16.01.2026 03:33 — 👍 6 🔁 0 💬 0 📌 0
I wouldn't call it the best of anything, and I don't know if it counts as pelagic/ribbon chert, but at the end of this post there's some info on wood-grain chert from the Mississippian of Montana (that you may know about already). richardigibson.substack.com/p/geology-is...
15.01.2026 20:27 — 👍 3 🔁 0 💬 0 📌 0
#MineralMonday Pyrite concretion, New Albany Shale, American Aggregate Quarry, Indianapolis, Indiana. 3.2 cm.⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
12.01.2026 18:58 — 👍 44 🔁 4 💬 3 📌 0
About 60 or so in Butte. Photo by Connie Thomson.
10.01.2026 16:16 — 👍 1 🔁 0 💬 0 📌 0Friday 1/9/26 in Butte America.
08.01.2026 03:28 — 👍 2 🔁 0 💬 0 📌 0
Non- #MineralMonday Dahllite isn’t a mineral, it’s just carbonate-rich hydroxylapatite. This one is from Wyoming USA. richardigibson.substack.com/p/dahllite ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
05.01.2026 17:51 — 👍 20 🔁 0 💬 0 📌 0
And this book is more about mineral resources than energy, but there's a chapter mostly about oil and coal. www.amazon.com/WHAT-THINGS-...
29.12.2025 18:14 — 👍 17 🔁 0 💬 1 📌 0
and richardigibson.substack.com/p/oil-in-iran I recognize these are minimal in terms of your request. I'd read that book too!
29.12.2025 18:12 — 👍 1 🔁 0 💬 0 📌 0
It's certainly not comprehensive, but I've done some places, for example historyoftheearthcalendar.blogspot.com/2014/04/apri...
29.12.2025 18:11 — 👍 24 🔁 4 💬 2 📌 0
#MineralMonday Quartz, Herkimer, New York USA 4.8 cm. Photo at right shows negative crystals in it, about 0.5 mm each. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
29.12.2025 16:53 — 👍 10 🔁 1 💬 0 📌 0
Coming attractions at The Geologic Column. richardigibson.substack.com #geology No MAGA! #Standupforscience #mineral
28.12.2025 18:08 — 👍 3 🔁 0 💬 0 📌 0
#MineralMonday Wulfenite, mimetite, Rowley Mine, Arizona USA. Approx 3 mm wide. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
22.12.2025 16:29 — 👍 32 🔁 5 💬 1 📌 0
#MineralMonday Malachite and azurite, Morenci Mine, Arizona USA. Approx 6 mm wide. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
15.12.2025 22:10 — 👍 37 🔁 4 💬 1 📌 0
#MineralMonday Calcite and fluorite, Minerva #1 Mine, Cave-in-Rock, Illinois USA. Approx 6 cm wide, collected in 1969. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
08.12.2025 20:51 — 👍 34 🔁 3 💬 1 📌 0No.
03.12.2025 18:43 — 👍 1 🔁 0 💬 0 📌 0