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/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/3mie2vorip22yhttps://bsky.app/profile/nishimoto.rocks/post/3mhnmqdcr5c2ePacked with brachiopod fossils, “Uzura” limestone used in the entrance wainscot of the former Mitsubishi Bank Otaru Branch (Otaru Canal Terminal). The same limestone was also used in Japan’s National Diet Building. #pavementgeology #街の中で見つかるすごい石 #街角地質学22 Mar 2026 13:12 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mhnmqdcr5c2ehttps://bsky.app/profile/nishimoto.rocks/post/3mhn3lrc7o224Large Shikamaia fossils in the stone counter at the former Bank of Japan Otaru Branch in Hokkaido, now a financial museum. Permian limestone from Gifu, Japan. #pavementgeology #街の中で見つかるすごい石 #街角地質学22 Mar 2026 08:05 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mhn3lrc7o224https://bsky.app/profile/nishimoto.rocks/post/3mhfwhzq5rk2yBurrow fossils (trace fossils) in the cladding of the Roppongi Hills in Tokyo are made of Kasota limestone, which comes from Minnesota in the USA. #pavementgeology #街の中で見つかるすごい石 #街角地質学19 Mar 2026 11:45 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mhfwhzq5rk2yhttps://bsky.app/profile/nishimoto.rocks/post/3mhfvv42tms2yFound a sea urchin fossil on the inner wall of Roppongi Hills, Tokyo. #pavementgeology #街の中で見つかるすごい石 #街角地質学19 Mar 2026 11:35 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mhfvv42tms2yhttps://bsky.app/profile/nishimoto.rocks/post/3mhb3a3newk2wA “snake” on the exterior stone wall of Roppongi Hills. Dolerite from Virginia, USA.17 Mar 2026 13:27 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mhb3a3newk2whttps://bsky.app/profile/nishimoto.rocks/post/3mhb2zw72fs2wTrilobite fossil found in limestone next to the elevator in a building, Tokyo. [contains quote post or other embedded content]17 Mar 2026 13:24 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mhb2zw72fs2whttps://bsky.app/profile/nishimoto.rocks/post/3mfe2x6c4722gMt. Norikura-dake, an active volcano in central Japan composed of andesite–dacite lava domes and lava flows, viewed from a ski ground in Nagano Prefecture.21 Feb 2026 07:10 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mfe2x6c4722ghttps://bsky.app/profile/nishimoto.rocks/post/3mco63kcqas2zManganese dendrites displayed in Gamagori Natural History Museum.18 Jan 2026 03:17 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mco63kcqas2zhttps://bsky.app/profile/nishimoto.rocks/post/3mazvmqszik2qPyroclastic dike intruding into pitchstone. Aichi, Japan.28 Dec 2025 08:27 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mazvmqszik2qhttps://bsky.app/profile/nishimoto.rocks/post/3mafpamrmek2lMylonite from Oshika, Nagano, Japan. FOV=ca.9 mm #thinsection #petrology #petrography #polarizingmicoscope 鹿塩マイロナイトの偏光顕微鏡写真20 Dec 2025 07:40 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3mafpamrmek2lhttps://bsky.app/profile/nishimoto.rocks/post/3m6uzfeyp622mPtygmatic vein in a cobble from Tenryu-river, Shizuoka. - Specimens on display at Kiseki museum.30 Nov 2025 23:01 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3m6uzfeyp622mhttps://bsky.app/profile/nishimoto.rocks/post/3m6uyhrbgj22mRed Mt. Fuji by the sunset seen through a lava tree mold. 溶岩樹型越しに見る赤富士 #奇石博物館 #赤富士30 Nov 2025 22:44 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3m6uyhrbgj22mhttps://bsky.app/profile/nishimoto.rocks/post/3m2t25kbh222z'Vietnam Basalt' from Tỉnh Gia Lai, Vietnam; OPL, FOV=ca.5 mm #thinsection #petrology #petrography #polarizingmicoscope 「ベトナムバサルト」の偏光顕微鏡写真10 Oct 2025 06:28 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3m2t25kbh222zhttps://bsky.app/profile/nishimoto.rocks/post/3m2szzvzjwk2zNon-destructive identification of gabbroic building stone using portable X-ray fluorescence (pXRF) analysis - npj Heritage Science https://www.nature.com/articles/s40494-025-02071-510 Oct 2025 06:26 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3m2szzvzjwk2zhttps://bsky.app/profile/nishimoto.rocks/post/3lz6i2pfjcc2r"Amakusa whetstone", a rhyolite from Amakusa in Kumamoto prefecture, displays a pattern resembling tree rings.19 Sep 2025 08:46 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3lz6i2pfjcc2rhttps://bsky.app/profile/nishimoto.rocks/post/3lz67772dec2tCombination of sandstone and dacite from Amakusa, Kumamoto prefecture, at the Memorial Museum of the Fifth High School at Kumamoto University.19 Sep 2025 06:07 +0000at://did:plc:grs2cpovtkrybphychvxeorb/app.bsky.feed.post/3lz67772dec2t