磁性のある石を探しに。できればヤコブス鉱をみつけたい。
This is a video from a rock-picking trip I took last December. I'm trying to find jacobusite, a magnetic mineral that coexists with manganese ore, but I can't tell the difference between it and magnetite. This video shows how to carve pink rhodonite from black manganese ore. • 真っ黒な石からピンクの石を削り出す。 Voice Synthesis (Voice) ・Tokino Koishi = AHS Inc. "VOICEROID2" CV: Mai Kadowaki Music ・Fuka & Haba (dova-s.jp/_contents/author/profile215.html)
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白川郷の埋蔵金を追え！地下約14メートル、戦国時代の地層の発掘調査を現地からライブ配信！3度目の挑戦でついに歴史的発見か！？
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Teure Mineralien: Auf der Jagd nach "Geistergold" und Kristallen | Gut zu wissen | Doku | BR
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Searching for stones in the cold (and discovering new things!)
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ペグマタイト
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鉄ばん柘榴石ガーネットを見つけました。
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2026年6月4〜５日にヒスイ拾いに行きました
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Stonehenge Was Reanalyzed by AI — And the Findings Are Hard to Explain
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玉髄化した珪化木
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Extracting gold from gold ore! Recreating the gold refining process at a gold mine during the War...
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How Much Gold Is Trapped In My Old Slag???
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Only Pakistani Mechanics Can Repair This Giant Caterpillar Loader Tire
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【ゆっくり解説】レインボーガーネット もう採れない虹の石
![So Many Garnets!! [Chichibu Mine, Unozawa, Saitama: Garnet Outcrop] Found Apatite and Quartz Too!](https://i.ytimg.com/vi/-aqCEuRosb4/hqdefault.jpg?sqp=-oaymwEjCNACELwBSFryq4qpAxUIARUAAAAAGAElAADIQj0AgKJDeAE=&rs=AOn4CLCfuVoC-YnaCmLx1y8qVDtatJkktQ)
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So Many Garnets!! [Chichibu Mine, Unozawa, Saitama: Garnet Outcrop] Found Apatite and Quartz Too!
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I found purple chalcedony.
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Mineral Room 78: Collecting stones in the Kuji River
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Picking up stones on the riverbank in spring - Searching for bamboo leaf stones
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Summer Opal Hunting 2025
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What's Inside These Lake Superior Agates?
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ついに発見！血石「ブラッドストーン」
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