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Aiwadani Nashiji・Natural Finishing Stone・Awasedo・Shiga, Japan #3
Aiwadani Nashiji・Natural Finishing Stone・Awasedo・Shiga, Japan #3
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Aiwadani Nashiji from Shiga Prefecture, part of the same geological strata group as Kyoto stones. Slightly soft with an effective grit range of 6000+. Known for its creamy feel, ease of control, and ability to produce a refined kasumi finish.
You will get the stone on the picture.
Full Description
Full Description
The term Nashiji refers to a specific surface character and internal structure found in certain layers of Japanese natural stones. The name derives from its visual resemblance to the skin of a Japanese pear (nashi), marked by fine, evenly distributed speckling. In practice, this structure indicates a stone with a uniform abrasive distribution rather than pronounced lines or banding.
Within the Aiwadani strata, Nashiji stones are typically associated with consistent behavior and predictable feedback. The abrasive particles are well dispersed, which contributes to stable slurry formation and even interaction with steel across the working surface. This makes Nashiji stones particularly suitable for finishing work where control and repeatability are preferred over aggressive cutting.
Geologically, Aiwadani is part of the same broader sedimentary system as the Kyoto whetstone mountains, despite its location in present-day Shiga Prefecture. Stones from this area often share similar mineral composition and behavior, while retaining distinct local characteristics shaped by differences in pressure and deposition within the strata.
In use, this stone fits naturally into a traditional finishing sequence, where subtle refinement and surface uniformity are the primary goals. It is well suited for users who value a steady response and clear feedback, allowing adjustments in pressure and technique without sudden changes in behavior.
This piece was selected for its structural consistency and reliable working qualities, representing the Nashiji character in a balanced and understated form.
Materials
Materials
Natural Whetstone - Aiwadani Nashiji
Measurements
Measurements
Length: 20,4cm
Width: 7,5cm
Height: 3,5cm
Weight: 1136g
Hardness: ●●●○○ (3/5)
Care Guide
Care Guide
To preserve the character, performance, and longevity of your natural Japanese whetstone, please follow these care guidelines:
1. Keep the Stone Flat
Natural stones wear more slowly than synthetic stones, but regular flattening is still essential for controlled sharpening. Use a diamond lapping plate or a suitable flattening stone to maintain a flat, even surface. Avoid aggressive lapping unless necessary.
2. Use Water Only
Natural Japanese whetstones are designed to be used with water. Lightly wet the surface before use. Some stones benefit from a brief pre-wetting, while others should not be soaked for extended periods. Do not use oil or chemical additives.
3. Slurry Management
Depending on the stone, slurry may develop naturally during use. This is part of the sharpening process and should be managed gently. Avoid excessive pressure or artificial slurry generation unless intentionally desired.
4. Clean After Use
After sharpening, rinse the stone thoroughly with clean water to remove metal particles and residue. Use a soft brush if needed. Do not use soap, detergents, or abrasive cleaners.
5. Dry Slowly and Naturally
Allow the stone to air dry completely in a shaded, well-ventilated area. Avoid direct sunlight, heaters, or rapid temperature changes, as natural stones can crack if dried too quickly.
6. Store with Care
Store the stone in a dry, stable environment. Avoid damp locations and protect the stone from impacts or sudden temperature changes. If stored long-term, ensure the stone is fully dry before placing it in a box or wrapping.
7. Inspect Before Use
Before each use, rinse the surface and ensure it is free from dust, grit, or foreign particles. Any contamination may cause scratches on the blade and compromise sharpening results.
By following these guidelines, your natural whetstone will retain its unique sharpening characteristics and provide consistent, controlled results over time.
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