{"product_id":"25661","title":"Japanese Natural Obsidian 20mm Rough Stone Set 200g (ID:25661)","description":"- Product Name: Japanese Natural Obsidian 20mm Rough Stone Set 200g (ID:25661)\u003cbr\u003e\u003cbr\u003e\n- Size: 20mm to 30mm (average; please refer to the scale in the photo).\u003cbr\u003e\u003cbr\u003e\n- Weight: 200g\u003cbr\u003e\u003cbr\u003e\n- Origin: Japan, Nagano, Shimosuwa\u003cbr\u003e\u003cbr\u003e\n- Metal Material: None\u003cbr\u003e\u003cbr\u003e\n[Product Description]\u003cbr\u003e\u003cbr\u003e\nThis is a rare Japanese natural stone.\u003cbr\u003e\n◆ The product photo is a representative sample from the same lot. Sold in units of approx. 200g per lot.\u003cbr\u003e\n◆ Obsidian is a natural volcanic glass formed by the rapid cooling of rhyolitic magma. In Japan, major archaeological sources include the Oki Islands in Shimane Prefecture, Hoshigato and Wada Pass in Nagano Prefecture, and Engaru (Shirataki) in Hokkaido, where it was historically used for stone tools and ornaments.","brand":"榎本通商","offers":[{"title":"Default Title","offer_id":67851457331473,"sku":"25661","price":37.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/5487\/3105\/files\/25661a.jpg?v=1792753289","url":"https:\/\/japanmineral.com\/products\/25661","provider":"Japan Mineral","version":"1.0","type":"link"}