Geologist @ Aichi Univ., Japan / former curator / building stone / granitic rock 地質系元学芸員現大学教員が地質学をエンジョイ。 著書など☞ https://amzn.to/3KH2Ffn ウェブサイト☞ http://nishimoto.bizhttps://bsky.app/profile/nishimoto.rockshttps://bsky.app/profile/nishimoto.rocks/post/3mwx56j7d5c2oSpinel dunite from Samani, Hokkaido, Japan. FOV=ca.5 mm #thinsection #petrology #petrography #polarizingmicoscope03 Oct 2026 05:18 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mwx56j7d5c2ohttps://bsky.app/profile/nishimoto.rocks/post/3mwdemjtk5s2sAn outdrop of hedenbergite skarn, Kamioka, Gifu, Japan.25 Sep 2026 08:38 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mwdemjtk5s2shttps://bsky.app/profile/nishimoto.rocks/post/3mvzj2l43ec26Kuroshima Fishing Port, Japan, uplifted ~4 m in the Jan. 2024 Noto Peninsula Earthquake. The white part marks the former intertidal/subtidal zones encrusted by calcareous algae and other marine life. Already largely buried by sand.21 Sep 2026 10:31 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mvzj2l43ec26https://bsky.app/profile/nishimoto.rocks/post/3mvrx2ha6w22aBig hornblende crystals in meta-gabbro at a riverside in Kamioka, Gifu, Japan.18 Sep 2026 10:20 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mvrx2ha6w22ahttps://bsky.app/profile/nishimoto.rocks/post/3mvpmk2scf225Columnar joints of andesite that collapsed due to the Noto Peninsula Earthquake.17 Sep 2026 12:07 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mvpmk2scf225https://bsky.app/profile/nishimoto.rocks/post/3mvpd5snkak2nAn elevator surrounded by "Black Fossil Marble" - Moroccan limestone full of Orthoceras, in a parking lot located near the Kanazawa Station West Exit. #pavementgeology #街の中で見つかるすごい石 #街角地質学17 Sep 2026 09:19 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mvpd5snkak2nhttps://bsky.app/profile/nishimoto.rocks/post/3mvpcmoeop22nA beautiful green schist stone wall at a private residence in Kaga City, Ishikawa, Japan.17 Sep 2026 09:09 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mvpcmoeop22nhttps://bsky.app/profile/nishimoto.rocks/post/3mvd56ofzb225A fishing port uplifted by the 2024 Noto Peninsula Earthquake.12 Sep 2026 13:00 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mvd56ofzb225https://bsky.app/profile/nishimoto.rocks/post/3mvakxh3c4k25Peridotite nodule (xenolith) inside a stone bollard at the plaza in front of the Kitamaebune-no-Sato Museum, Kaga City, Ishikawa, Japan. I suspect it is basalt from Liaoning Province, China.11 Sep 2026 12:29 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mvakxh3c4k25https://bsky.app/profile/nishimoto.rocks/post/3muh6oq54j22qTook students caving at Toei-town, Aichi, Japan. Observed stalactites, stalagmites, and flowstones.01 Sep 2026 10:12 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3muh6oq54j22qhttps://bsky.app/profile/nishimoto.rocks/post/3muci2exifs27Big crystals of Cpx and Opx in peridotite, Hokkaido, Japan. #様似町 #peridotite30 Aug 2026 13:17 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3muci2exifs27https://bsky.app/profile/nishimoto.rocks/post/3mu7oozmszk2ySingle crystal of olivine! #様似町 #アポイ岳ジオパークビジターセンター.#olivine #peridotite29 Aug 2026 10:38 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mu7oozmszk2yhttps://bsky.app/profile/nishimoto.rocks/post/3mtvrn73yks2nRuby found in mafic rock within the peridotite of Mount Apoi, Hokkaido, Japan - A specimen at the the Apoi Geopark Visitor Center.25 Aug 2026 12:04 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mtvrn73yks2nhttps://bsky.app/profile/nishimoto.rocks/post/3mtvrazi4v22nThe view from Mt Apoi, a mountain of peridotite, Hokkaido, Japan.25 Aug 2026 11:57 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mtvrazi4v22nhttps://bsky.app/profile/nishimoto.rocks/post/3mtj6sh5vfs2rA big hexagonal cross-section of quartz observed at a pegmatite outcrop in Hamada, Shimane, Japan.20 Aug 2026 11:55 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mtj6sh5vfs2rhttps://bsky.app/profile/nishimoto.rocks/post/3msn3xkjv3k2tA typical euhedral crystal of hornblende in the wall cladding of the Daisen Museum of Nature and History.09 Aug 2026 07:49 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3msn3xkjv3k2thttps://bsky.app/profile/nishimoto.rocks/post/3ms5sfw7dy22j"Verde Lapponia", fuchsite-bearing quartzite from northern Norway. FOV=ca.5 mm #thinsection #petrology #petrography #polarizingmicoscope03 Aug 2026 05:48 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3ms5sfw7dy22jhttps://bsky.app/profile/nishimoto.rocks/post/3mr22uxtdac2cHornblende in “Kannabe Ao-Mikage”, andesite from Toyooka, Hyogo, Japan20 Jul 2026 00:44 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mr22uxtdac2chttps://bsky.app/profile/nishimoto.rocks/post/3mp6gcaxztk23Irregular shape of tourmaline in quartz from Hazu, Nishio, Aichi, Japan. FOV=ca.5 mm #thinsection #petrology #petrography #polarizingmicoscope #岩石 #偏光顕微鏡写真26 Jun 2026 07:29 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mp6gcaxztk23https://bsky.app/profile/nishimoto.rocks/post/3moptej6pzs2yMetamorphic peridotite from Ibaraki, Japan 蛇紋岩が熱変成してできたカンラン岩 #茨城県自然博物館20 Jun 2026 12:13 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3moptej6pzs2yhttps://bsky.app/profile/nishimoto.rocks/post/3mopsnadfks2iZoning of elbaite from Madagascar - Collection of the Ibaraki Nature Museum.20 Jun 2026 12:00 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mopsnadfks2ihttps://bsky.app/profile/nishimoto.rocks/post/3mopsluq36c2iZoning of fluorite from UK - Collection of the Ibaraki Nature Museum.20 Jun 2026 11:59 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mopsluq36c2ihttps://bsky.app/profile/nishimoto.rocks/post/3mn53anv3hk2yKurobegawa granite, the youngest granite on Earth. Orthoclase exhibits poikilitic texture. FOV=ca.5 mm #thinsection #petrology #petrography #polarizingmicoscope #岩石 #偏光顕微鏡写真31 May 2026 07:48 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mn53anv3hk2yhttps://bsky.app/profile/nishimoto.rocks/post/3mn2sfhalnk2rThe stone used for the monument at Botagaike Park in Miyoshi City, Aichi, is "Rustenberg," gabbro from South Africa.30 May 2026 10:04 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mn2sfhalnk2rhttps://bsky.app/profile/nishimoto.rocks/post/3mmgf3rfx6227Hornblende in "Kuro-Kurama" - diorite or gabbro from Kurama, Kyoto, Japan. FOV=ca.2 mm #thinsection #petrology #petrography #polarizingmicoscope22 May 2026 07:13 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mmgf3rfx6227https://bsky.app/profile/nishimoto.rocks/post/3mlnbktmzls2tClinozoisite in "Bethel White" - Bethel granite from Bethel, Vermont, US. FOV=ca.2 mm #thinsection #petrology #petrography #polarizingmicoscope #岩石 #偏光顕微鏡写真12 May 2026 07:33 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mlnbktmzls2thttps://bsky.app/profile/nishimoto.rocks/post/3mkwildfgvk2n"Kannabe Ao-mikage" andesite from Toyooka, Hyogo, Japan. FOV=ca.5 mm #thinsection #petrology #petrography #polarizingmicoscope #岩石 #偏光顕微鏡写真03 May 2026 06:07 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mkwildfgvk2nhttps://bsky.app/profile/nishimoto.rocks/post/3mjcdmijuh22oMuscovite in pegmatite, Nishio, Aichi Japan. FOV=ca.5 mm #thinsection #petrology #petrography #polarizingmicoscope12 Apr 2026 12:20 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mjcdmijuh22ohttps://bsky.app/profile/nishimoto.rocks/post/3mie2vorip22yTitanite in granite from Kurahashi island, Kure, Hiroshima, Japan. FOV=ca.2 mm #thinsection #petrology #petrography #polarizingmicoscope31 Mar 2026 11:24 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mie2vorip22y