Pyroclastic dike intruding into pitchstone. Aichi, Japan.

なるほどね。ちょっと面白いのが厄介だよな。多分もうやらない。 足多いな。

Mylonite 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

Ptygmatic vein in a cobble from Tenryu-river, Shizuoka. - Specimens on display at Kiseki museum.

Red 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

'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

Non-destructive identification of gabbroic building stone using portable X-ray fluorescence (pXRF) analysis - npj Heritage Science www.nature.com/articles/s40...

"Amakusa whetstone", a rhyolite from Amakusa in Kumamoto prefecture, displays a pattern resembling tree rings.

Combination of sandstone and dacite from Amakusa, Kumamoto prefecture, at the Memorial Museum of the Fifth High School at Kumamoto University.

What are these fossils in the mantle in a hotel. Stone is probably Egyptian limestone.

Tenjin Station on the Fukuoka City Subway was almost entirely covered in unknown marble. I could not stop looking at it and watched several trains pass by.

Saku Teppei-Seki Quarry in Sakuho, Nagano, Japan. This andesite has platy joints that fracture easily into thin slabs.

Saku-Teppei stone edge piling at a roadside station in Sakuho, Nagano Japan. 佐久鉄平石の小端積み＠道の駅「八千穂高原」 #街の中で見つかるすごい石 #街角地質学

Photo taken wearing "fault T-shirt" while standing on the Oshika Museum of Median Tectonicl Line (outdoor exhibit at the museum)😆

A polished granitic mylonite specimen displayed at the Oshika Museum of Japan Median Tectonic Line, Nagano, Japan.

White sericite outcrop in the Sanshin Mine, Toei, Aichi, Japan. Most of it is used for high-end cosmetics.

A cross-section of a brachiopod fossil in the elevator hall of Midland-Square in Nagoya, Japan. #街の中で見つかるすごい石 #街角地質学 #街化石 #pavementgeology #fossils

Phlogopite basalt from Kurayoshi, Tottori, Japan; FOV=ca.5 mm 金雲母玄武岩(鳥取県倉吉市産)の偏光顕微鏡写真 #thinsection #petrology #petrography #polarizingmicoscope

Stilpnomelane schist from Nagatoro, Saitama, Japan; OPL, FOV=ca.1 mm #thinsection #petrology #petrography #polarizingmicoscope スティルプノメレン片岩の偏光顕微鏡写真

The large piece of petrified wood on display in Rojo Park, Komatsu City looks like a monument.

Garnet in the dacite used for cladding the entrance wall of Nagoya City Hall.

Amazing sea urchin fossil at Pacific Century Place Marunouchi underground passage near Tokyo Station. すごいウニ化石！模様までくっきり＠東京駅そばのパシフィックセンチュリープレイス丸の内地下通路 …ピコモル(@picomol.bsky.social )さん情報ありがとう

Perlite with visible concentric cracks from Toyooka, Hyogo, Japan. 同心円の割れ目が発達していることがわかる真珠岩。兵庫県豊岡市産。

What does this look like? "Emerald Pearl"-Larvikite from Norway OPL, FOV=ca.5mm #thinsection #petrology #petrography #polarizingmicoscope

The Hungarian building-stone researcher I took to Nagoya Castle was very excited to see the stone walls. He said that the stones were totally different... I want to see Hungarian stone walls too and get excited! 名古屋城をご案内したハンガリーの石材研究者は石垣を見て大興奮だった(^-^)/...積んである岩石がぜんぜん違うらしい...私もハンガリーの石垣を見て興奮したい😆

Good cross sections of Rudist fossils in the inner wall of YUITO building, Tokyo. Limestone from Italy. 厚歯二枚貝化石の良き断面（ユイト日本橋） #街の中で見つかるすごい石 #街角地質学

Special tour of the Giorgio Armani store, Ginza Tokyo! The floor is covered with gorgeous stones, including Azul Macauba from Brazil and Labradorite from Madagascar.

A large quartz in rhyolite porphyry of a stone wall on the roadside! A phenocryst or a relict crystal?

Is the red marble Languedoc, limestone from France? (Photo: the White House )

"Fior Di Pesco Carnico"- limestone from Italy. XPL, FOV=9mm #thinsection #polarizingmicoscope 「フィオール・ディ・ペスコ・カルニコ」（イタリア産石灰岩）の偏光顕微鏡写真 #岩石薄片 #偏光顕微鏡写真 #街角地質学

大学の桜が満開🌸

The 2025 #IODP Borehole Core exhibit at the Nagoya City Science Museum is two Indian Ocean submarine sediments with a tuff bed from the catastrophic Toba eruption about 74,000 years ago. #borehole #JAMSTEC #名古屋市科学館

Many fossils on the ground floor walls of Premier Hotel Mojiko, Probably ‘Indus Gold’, a marble from Pakistan. Paleontologists or fossil experts, please tell me what fossils they are! #プレミアホテル門司港 #街の中で見つかるすごい石 #街角地質学 #街化石 #pavementgeology #fossils

The mantelpiece of the room in Moji, Japan, where the Dr. Einstein stayed was made of serpentine. #街の中で見つかるすごい石 #街角地質学 #pavementgeology

Enjoyed Japanese marbles at a cafe in Ebisu, Tokyo. 国産大理石を堪能！＠恵比寿の銀座喫茶☺️ ひとみしり犬さん( @kutan4959.bsky.social )情報ありがとうございます〜

Look like iron-oxide concretions. science.nasa.gov/blog/shockin...

Rudist fossil in "Nero Marquina" limestone from Spain at the entrance of Kyoto Theater. #pavementgeology #街の中で見つかるすごい石 #街角地質学

泊まった宿で見つけたアンモナイト 石材は「ペルリーノロザート」🇮🇹

The Scotsman Steps, #Edinburgh Work No. 1059 Martin Creed, 2011 104 steps clad in a different #marble from such diverse places as Italy, Lebanon, Namibia & Portugal, #SundayStonework #Art

Exterior of ZARA in Kobe is LAVA , probably basalt from Hainan, China. 神戸ZARAの外壁がLAVAだった😆 たぶん「海南バサルト」。中国海南島産の玄武岩。 #街の中で見つかるすごい石 #街角地質学

The river banks in Tokushima are covered with "Awa Aoishi" (green schist from Tokushima). Awesome! 徳島の川岸は「阿波青石」(緑色片岩)の石垣が延々と続いている。すばらしい〜 #街の中で見つかるすごい石 #街角地質学

Ammonite fossil in Osaka Terminal. 大阪駅中央南口柱でアンモナイト化石みっけ(^-^)/ #街の中で見つかるすごい石 #街角地質学

“Balkan White” and “Striato Olimpico”, decorating Osaka Terminal are marbles from Greece and Turkey respectively.

A stone wall, not a stratum, composed of basalt, granite and tuff, in Toyooka city, Hyogo, Japan. #pavementgeology 玄武岩・花崗岩・凝灰岩の地層ではなく、石垣！＠兵庫県豊岡市 #街の中で見つかるすごい石 #街角地質学

Conglomerate foot bath in the Hakone open-air museum, Hakone.

The world's smallest dinosaur egg fossil discovered in Tanba, Hyogo, Japan, on display at the Museum of Nature and Human Activities, Hyogo. 兵庫県丹波市で発見された世界最小の恐竜卵の化石 #兵庫県立人と自然の博物館

New elaborate reconstructed model of Anomalocaris, in Gamagori Natural History Museum, Aichi, Japan.

Not LSI. It is a mineral! Microcline in "Bā Lā Huā" or "Bala Flower", granite from China. (XPL, FOV 1 mm) #thinsection #polarizingmicroscope #岩石薄片 #偏光顕微鏡写真 #街角地質学

Ammonite jaw apparatuses in the Jurassic Solnhofen Limestone from German, used as paving stone for a shopping center in Japan.

Ammonite fossil in “Rosa Corallo”, limestone from Italy, at Tokyo Metro Shinbashi station. 東京メトロ新橋駅階段脇のイタリア産「ローザコラーロ」中のアンモナイト化石. #街の中で見つかるすごい石 #街角地質学