{"product_id":"izariyama-c_izr_4_2","title":"Izariyama Tomae  #C_IZR_4_2","description":"\u003cp\u003e\u003cstrong\u003eDescription \u0026amp; Mine Provenance\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Awasedo (finishing stone).\u003cbr\u003e\u003cstrong\u003eMine Origin: Izariyama\u003c\/strong\u003e (イザリ山), a renowned western-cluster (Nishimono) mine in the Kameoka\/Tamba district of Kyoto.\u003cbr\u003e\u003cstrong\u003eDimensions \u0026amp; Weight:\u003c\/strong\u003e 205 mm × 80 mm × 45 mm; 1,772 g (heavyweight full bench size with exceptional thickness and a broad working footprint).\u003cbr\u003e\u003cstrong\u003eMarkings \u0026amp; Stamping:\u003c\/strong\u003e\u003cbr\u003eFeatures the 正本山 (Sho-honyama) verification stamp, certifying origin under the Kyoto awasedo standard.\u003cbr\u003eStamped with the traditional Kyoto Stone Association cherry-blossom inspection crest (Kansen mark).\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotable Physical Features on the Underside\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eArched Saw Marks: \u003c\/strong\u003eThe wide, sweeping radial grooves across the face are classic quarry or workshop saw marks from large circular diamond\/carbide stone-cutting wheels. They show the block was slabbed mechanically rather than split strictly along natural bedding planes, leaving the base rough for mounting grip.\u003cbr\u003eIncomplete Stamp Transfer: The ink is broken up precisely because it was stamped directly over those saw ridges. The ink only transferred on the high ridges of the saw teeth, leaving the valleys dry.\u003cbr\u003e\u003cstrong\u003eEdge Cleave \/ Chip:\u003c\/strong\u003e On the right edge (visible in the wider shot), there is an older, naturally patinated edge breakout. It follows the stone’s internal cleavage angle and is completely stable, showing no spiderwebbing fractures running inward.\u003cbr\u003eOxidation Spots (Sabi): The scattered rusty orange-brown spots are small, localized iron mineralizations common in Izariyama and related western\/southern Kyoto strata. They are superficial and benign.\u003cbr\u003eBase Flatness \u0026amp; Grip: Because this side is grooved and unlapped, it provides great mechanical tooth\u003cbr\u003e\u003cstrong\u003eColoration \u0026amp; Aesthetic:\u003c\/strong\u003e Pale greenish-grey Asagi tone with subtle buff-tan undertones, accompanied by characteristic light iron flecking (Nashiji points) on the bottom face.\u003cbr\u003eClassification \u0026amp; Layer\u003cbr\u003e\u003cstrong\u003eStratum: \u003c\/strong\u003eTomae (戸前) layer, exhibiting a tight, uniform sedimentary structure characteristic of high-grade Izariyama finishing beds.\u003cbr\u003e\u003cstrong\u003eFineness:\u003c\/strong\u003e Fine finishing\/polishing grade, roughly equivalent to 8000+ grit depending on slurry density and Nagura usage.\u003cbr\u003e\u003cstrong\u003eHardness: \u003c\/strong\u003eRated at approximately Lv 3 to 3.5.  yielding crisp edge apexes and clean, hazy contrast on bevels.\u003cbr\u003e\u003cstrong\u003eEvaluation \u0026amp; Working Utility\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eForm Factor: \u003c\/strong\u003eSawn square with flat, parallel reference surfaces; the 80 mm width comfortably supports wide kitchen blades, carpentry plane irons, and chisels without overhang instability.\u003cbr\u003e\u003cstrong\u003eService Life:\u003c\/strong\u003e Massive 45 mm thickness ensures an heirloom working lifespan suited for heavy shop use.\u003cbr\u003e\u003cstrong\u003eAbrasive Feel: \u003c\/strong\u003eSmooth, consistent feedback with high cutting efficiency for its density; initiates best when paired with an Atoma diamond plate, tomo nagura, or fine slurry stone.\u003cbr\u003e\u003cstrong\u003eCondition \u0026amp; Flaw Inspection\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eSurface:\u003c\/strong\u003e A faint diagonal line crosses the face; appears completely non-toxic, but should be examined periodically, and if needed, chamfered or smoothed to guarantee zero tool catching.\u003cbr\u003e\u003cstrong\u003eEdges:\u003c\/strong\u003e Natural micro-chipping typical of dry-sawn strata around the corners; beveling the outer perimeter before regular water immersion is advised.\u003cbr\u003eSides and base are sealed with water based polyeurithane lacquer to prevent water intrusion along the sedimentary planes.\u003cbr\u003eMarket Valuation\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Dust Bowl Knives","offers":[{"title":"Default Title","offer_id":48084042809475,"sku":null,"price":550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/7320\/1283\/files\/40_763baf3d-7e3d-45fe-a89e-09b7981759eb.png?v=1788455225","url":"https:\/\/dustbowlknives.com\/products\/izariyama-c_izr_4_2","provider":"Dust Bowl Knives","version":"1.0","type":"link"}