Siliciclastic stone is a clastic, noncarbonate, sedimentary stone that is almost exclusively silica-bearing and exists as either a form of quartz or, another silicate mineral. In addition, hardened clay is also a sedimentary stone but, it is formed from organic materials such as plant and animal matter and thus, it is much softer than Siliciclastic However, when silicon sediment is suspended in a clay matrix and then naturally hardened over thousands of years, it forms an excellent whetstone material; although, it is somewhat softer than Novaculite. Thus, because the geology of Japan once held large deposits of this type of stone it has been used for hundreds of years for sharpening tools, knives, and swords. However, unlike Novaculite, Belgian Blue, and Coticule, both natural and synthetic Japanese whetstones use water for lubrication and thus, they are commonly known as “Japanese Water Stones” because this type of stone is very porous. Thus, natural Japanese Water Stones must be soaked in water for up to twenty-four hours prior to use whereas, synthetic Japanese Water Stones can be soaked for only a few moments.
But waterstones are a different beast. They need to be soaked before using and require a steady stream of water to be dribbled onto them during sharpening. Ordinary whetstones work best dry. In fact, the tiny particles of steel that the stone grinds off can become suspended in the liquid and actually damage the blade. This is true of water and especially oil, which is another substance people often misguidedly apply to their whetstones, presumably with the goal of lubricating it. 
Understanding Grit: You’ll see a bunch of numbers being thrown around when discussing the grit of a sharpening stone. The number refers to the size of the grit. The larger the number, the finer the grit. A good beginner stone would be a two-sided stone with #400 and #1000 grit. The #400 grit is the courser stone for working out the nicks and imperfections, the #1000 grit is for refining.
The water stones work great for me. I spend about 10 minutes every other month with a 1000 grit and a 6000 grit to maintain it. I am very careful with my edge and I don't hack at beef bones with it and I always hand wash. It is truly something to experience when using a sharp knife. I have been a home cook for over 30 years. I used to think that the electric sharpener I have worked great, but now I know better.
Authentic Japanese Combination Whetstone which has the finest medium grey #1000 Grit on one side and a lower grade of 240 Grit on the other. It can be used for most type of knife such as cleaver, fruit, and sushi knife. This type of whetstone is recommended by many professional chefs to achieve ultimate sharpness of the knife. Use this whetstone also to sharpen your weaponry collections of Samurai Swords, Kama, etc.
Sharp knives make the culinary world go round but finding the best knife sharpener isn’t as simple as walking into the store (do people still walk into stores?) and grabbing the first sharpener that presents itself. There are different types of electric sharpeners, some that are straightforward and some whose sharpening process involves as many as 3 or 4 stages. If you’re looking to keep things simple by using a sharpening stone well, there are 3 different types of them as well – oil, water and diamond – and they each have their pros and cons. So it can be confusing.
This is a good size stone and has the two different grits needed for knife sharpening. No instructions were included, but there are many websites with written and video instructions, so this is not an issue for most people. A fair amount of dust is generated during the sharpening process, so protect the work surface and wash the knife after sharpening is completed.
The stick – With a stick sharpener hold the sharpener in front of you (facing away from you) with one hand and the handle in the other hand. Hold the base of the knife against the base of the tip at a slight angle and then push the blade along the stick pulling it across the stick at the same time. The tip of the blade should cross the end of the stick. To sharpen the other side of the blade place it under the stick and repeat the process making sure to reverse the angle at which you are holding the knife against the stick.
About a year ago, we wrote an article on why every man should carry a pocket knife. A lot of you out there agreed that the pocket knife deserves a permanent place in every man’s pocket. After we wrote the post, we started getting emails from men who were first time pocket knife owners asking how to sharpen their new prized possession. Well today we’re going to answer that question.
The humble sharpener tends to elicit more divergent opinions than just about any other type of kitchen tech. Everyone, it turns out, has their own take on which type of sharpener works best and why and most serious chefs aren’t shy about voicing their opinion. As you can imagine then there are a number of things most chefs – both professional and amateur – look for in a sharpener in order to ensure they get the one that’s right for them. These considerations include:
I would advocate for finer sharpening. Up to 4000 grit is good for me. I go 600, 1200, 4000. If you spent a whole day butchering animals you would want to sharpen that well. The edge lasts longer, cuts faster, and you can do fancier cuts without cosmetically ruining the meat. Some of my relatives scoffed at me for taking the extra few minutes to sharpen, but once I got them to try it I couldn't get my sharpening stones back.
Honing is kind of like dusting the furniture while sharpening is more like reupholstering the furniture. Honing is purely a maintenance activity that should be regularly practiced to make sure the blade is clean and sharp as can be every time you use it. It’s easily done using a honing rod, a leather strop or a sharpening stone; as most stones have a side for sharpening and a side for honing. Honing is akin to trimming your hair to remove the split ends. It’s not a full on haircut. What it does is realign the tiny sharp protrusions along the edge of the blade that can be bent over with use, so that they stand more or less straight.
These are very popular stones. 8" Dia-Sharps have a single grit per stone making them more expensive, but at 8" by 3" they are wider than the 8" DuoSharps, offering a good working surface. The 8" Dia-Sharp line also has the widest range of grits available from DMT, with extra extra coarse, medium extra fine and extra extra fine options not available in other sizes, so it is good line to consider. One coarse and one fine stone is a good starting point.
I have to laugh about your comment implying that a city with a Chinatown is somehow more civilized. Any Chinatown I've ever been to in this country is the epitome of barbarism. Rude shop and restaurant people, rotting food smells all around, sidewalks 8 deep with throngs of people. Shady-looking people on the sidewalks. My Chinese wife feels the same way. We visit Flushing fairly often and there is (some) good food to be had there but that's about it. The only Chinatown we have ever been to that is an exception is the one in Toronto. It is clean and spacious and respectable. The exact opposite of the American variation. Where we live now, there are Asian stores so no Chinatown necessary. Chinese stones are crap IMO. They are of inferior material and 'bow' rapidly. I think the sidewalk idea could net you a fine if you're caught. A cheap square of tile would do the same thing. As for sharpening by hand, it takes years of practice to get good at it. The Lanksy sharpening system is what I use. It keeps the stone at the proper angle(s). My stones are still flat after decades of use. They are high quality stones.
Actually, the company contacted me to make sure I received the stones and that I was happy with them. Excellent service. The stones are great! I'm pretty much a novice so the clear instructions that came with the stones and the eBook instructions were wonderful. The eBook had quality pictures demonstrating the use of the stones and the written instructions were clear and to the point. Within minutes of opening the box I had the stones figured out and sharpening my AF survival knife, my pocket knife and a couple of my wife's kitchen knives...which included a very expensive chef's knife. Very satisfied with this product and highly recommend it.
Sharpening stone/whetstones. Just as there are dozens of different ways to sharpen a knife, there are dozens of different sharpening stones. There are Japanese water stones, stones with diamond encrusted surfaces, and stones with different grades of grit. Again, choosing a stone is a matter of function and preference. Play around with different kinds of stones to find the one that gives you the results you’re looking for.