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Koppa stones from Kyoto

The fine grit natural stones

water stones

Koppa means small pieces. If you want to start natural stones for your kitchen knives, they are good for trial. You can use them for razor or chisels too. They are from Kyoto.
I have some other stones. Please let me know if you are looking for something. They are super fine grain stones.

#1 Awasedo, Kiita, Tomae. In Nakayama, Kyoto
Size 21 x 81 x 137mm. Weight 650g. Finest finishing stone, 2.109μm. Hardness: 54HSD.
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Price: JPY20,000 In stock
#2 Awasedo. In Kyoto
Size 24 x 54 x 156mm. Weight 665g include the wooden base. Finest finishing stone, 2.852μm. Hardness: 56HSD.
Extra pictures A, B, C
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Price: JPY16,000 In stock
#3 Awasedo, Asagi. In Kyoto
Size 19 x 63 x 175mm. Weight 530g. Finest finishing stone, 2.988μm. Hardness: 40HSD.
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Price: JPY18,000 In stock
#4 Awasedo. In Kyoto
Size 25 x 56 x 205mm. Weight 950g include the base. Finest finishing stone. Hardness: 46HSD.
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Price: JPY20,000 In stock
#5 Tsushima. In Tsushima, Nagasaki
Size 42 x 42 x 211mm. Weight 1,060g. Finest finishing stone. Hardness: 47HSD.
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Price: JPY14,000 In stock
#6 Left over stones. In Kyoto
Weight about 4,000g. The picture is sample.
Extra pictures A
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Price: JPY20,000 In stock
#7 Awasedo, Asagi. In Kyoto
Size 37 x 76 x 169mm. Weight 1,320g. Finest finishing stone. Hardness: 52HSD.
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Price: JPY32,000 In stock
#8 Awasedo. In Takashima Myoukakusan, Shiga
Size 20 x 74 x 197mm. Weight 1,100g include the wooden base. Finest finishing stone. Hardness: 29HSD.
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Price: JPY36,000 In stock
#9 Asagi. In Kyoto
Size 46 x 80 x 138mm. Weight 1,320g. Finest finishing stone, 2.362μm. Hardness: 51HSD.
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Price: JPY33,000 In stock
#10 Awasedo, Kiita. In Takashima Myoukakusan, Shiga
Size 39 x 86 x 135mm. Weight 1,040g. Finest finishing stone. Hardness: 50HSD.
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Price: JPY28,000 In stock
#11 Kiita. In Aiiwatani, Shiga
Size 18 x 65 x 175mm. Weight 540g. Finest finishing stone. Hardness: 41HSD.
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Price: JPY20,000 In stock
#12 Awasedo, tomae, Karasu. In Shoubu, Kyoto
Size 24 x 71 x 200mm. Weight 880g. Finest finishing stone. Hardness: 61HSD.
Extra pictures A
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Price: JPY68,000 In stock
#13 Awasedo, Kiita. Daigokujo Ipponsen. In Kyoto
Size 21 x 60 x 160mm. Weight 480g. Finest finishing stone. Hardness: 44HSD.
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Price: JPY16,000 In stock
#14 Tamagoiro. In Aiiwatani, Shiga
Size 30 x 58 x 160mm. Weight 690g. Finest finishing stone. Hardness: 51HSD.
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Price: JPY30,000 In stock
#15 Awasedo, Tamagoiro. In Kyoto
Size 24 x 81 x 136mm. Weight 580g. Finest finishing stone, 3.784μm. Hardness: HS36.
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Price: JPY17,000 In stock
#16 Awasedo, Tomae. In Shoubu, Kyoto
Size 22 x 120 x 155mm. Weight 855g. Finest finishing stone. Hardness: 49HSD.
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Price: JPY28,000 In stock
#17 Asagi. In Ozuku, Kyoto
Size 23 x 57 x 158mm. Weight 540g. Finest finishing stone, 2.874μm. Hardness: 56HSD.
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Price: JPY16,000 In stock
#18 Awasedo, Tomae. In Nakayama, Kyoto
Size 10 x 65 x 182mm. Weight 440g. Finest finishing stone, 2.696μm. Hardness: 52HSD.
Extra pictures A
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Price: JPY18,000 In stock
#19 Awasedo. In Takashima Myoukakusan, Shiga
Size 12 x 60 x 155mm. Weight 280g. Finest finishing stone. Hardness: 31HSD.
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Price: JPY12,000 In stock
#20 Awasedo, Tomae. In Nakayama, Kyoto
Size 27 x 45 x 180mm. Weight 710g. Finest finishing stone, 3.486μm. Hardness: 61HSD.
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Price: JPY26,000 In stock
#21 Awasedo, Tomae. In Nakayama, Kyoto
Size 28 x 60 x 170mm. Weight 790g. Finest finishing stone. Hardness: 44HSD.
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Price: JPY24,000 In stock
#22 Awasedo, Tomae, Iromono. In Ogurayama, Kyoto
Size 45 x 85 x 160mm. Weight 1,260g. Finest finishing stone. Hardness: 43HSD.
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Price: JPY36,000 In stock
#23 Awasedo. In Takashima Myoukakusan, Shiga
Size 12 x 130 x 170mm. Weight 760g. Finest finishing stone. Hardness: 42HSD.
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Price: JPY20,000 SOLD OUT
#24 Awasedo, Tomae, Kiita. In Nakayama, Kyoto
Size 36 x 70 x 180mm. Weight 1,020g. Finest finishing stone. Hardness: 50HSD.
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Price: JPY30,000 In stock
#25 Kiita, Kan, in Nakayama, Kyoto.
Size 23 x 91 x 135mm. Weight 765g. Finest finishing stone, 2.589μm. Hardness: 63HSD.
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Price: JPY53,000 In stock
#26 Awasedo, Iromono. In Kyoto
Size 42 x 92 x 110mm. Weight 1,130g. Finest finishing stone, 3.065μm. Hardness: 50HSD.
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Price: JPY30,000 In stock
#27 Awasedo, tomae, Karasu. In Shoubu, Kyoto
Size 40 x 80 x 150mm. Weight 1,210g. Finest finishing stone. Hardness: 45HSD.
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Price: JPY38,000 In stock
#28 Asagi, In Nakayama, Kyoto.
Size 32 x 56 x 207mm. Weight 855g. Finest finishing stone, 2.709μm. Hardness: 67HSD.
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Price: JPY46,000 In stock