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Purchase Item Specifics



Nakoda
~ Black Diamond ~


Length -   4 3/8" (3 1/2" taper)  ~   11.0 cm (9.0 cm taper)


Width -   1 13/16"   ~   4.5 cm


Depth -   15/16" -  3/4"   ~   2.2 cm - 1.9 cm



net weight -   0.622 lbs   ~    280 g




Invitica
~ Ultra-Fine ~



Length -   4 1/2" -  4 9/16"   ~   11.5 cm - 11.7 cm


Width -   1 7/8"   ~   4.8 cm


Depth -   7/8" -  3/4"   ~   2.2 cm - 2.0 cm



net weight -   .606 lbs   ~   275 g



Persia
~ Imperial  Blue ~



Length -   4 1/4"   ~   11.0 cm


Width -   1 7/8"   ~   4.7 cm


Depth -   1" -  5/8"   ~   2.5 cm - 2.1 cm



net weight -   0.639 lbs   ~    290 g



Lochinar
~ Water Hone ~


Length -   4 1/8"   ~   10.5 cm

Width -  1 15/16"   ~   4.9 cm

Depth -   3/4"   ~   2.0 cm


net weight -   0.566 lbs   ~    257 g



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Water hone for all edged tools requiring an instrument grade finish.



~ Cream to amber slurry with application of 600 grit diamond plate or rubbing stone~


~See final photo ~



Silica powder composes in the structural geometry leaving edges brilliance & durability.


Particles (i.e. slurry) allows both honing without clogging the pores as well as giving the highest polishing to the steel.


Microcrystalline particles release while honing create a more durable final polish than any type of synthetic stone.



~ Nakoda stones are excellent in final progression prior burnishing or stropping of straight razors  ~


~ Ideal stropping stone for fine kitchen knives ~


~ Hard & fine finishing hone of surgical grade ~



~ `May be used either with oil or as a water hone if oil is never given application  ~



- Full lapping one side -  See listing images - Slurry stone cost inclusive -


~ For light cleaning of the surface: 600 grit silicon carbide paper sheet cost inclusive ~




A note on clay matrix hones:


The Japanese often coat the bottom and sides of their finishing stones in lacquer.


This does assist the hone to hold the moisture & dry more evenly.


This is not of any absolute necessity and is left to their owner. 


 

Stones should be stored & dried in a warm, constant ambient temperature.



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~  Attention Canadian Customers; For combined shipping, inquire for Canada Post Flat Rate Box; up to 5 kg for $20 CAD


~  All inquiries welcome ~


RFACo. Note on Natural Sharpening Stones.

A 'pure' sample of novaculite would contain SiO2 or molecular silica only.  Our 'Invitica' listings are from this type of geological formation.  Sedimentary or clay matrix novaculite often have 2/3 SiO2 [silicon dioxide] content.  Generally speaking, this is the microporous form of quartzite doing the sharpening.  The other 1/3 is a bonding mineral often known as either Muskovite or as Sericite.".

The 'Persia' hones as fine examples of these sharpening stones.  Black veins occurring in certain hones exhibit iron oxide concentrations in the Muskovite.  In others, bluish patches demonstrate other mineralizations within the clay matrix stones.  Iron oxide is normally present.  Certain matrix stones have higher, more visible concentrations [In Japan, this characteristic is known as renge].  Examples of our “Lochinvar” sharpening stones demonstrate this ‘Iron Renge’ as an orange feathering or what specific examples surface as a pattern of glowing metallic sheen.

“Wild Rose” ‘Premium-Fine', 'Superior-Fine', 'Regular-Fine', & 'Select’ stones have been exposed to very high temperature volcanic or geothermal activities, thus giving them giving them an extraordinary hardness.  This aspect demonstrates both the level of geothermic activity that had once taken place and the actual qualities of their mineral sediment.


Often, natural hones are praised because the actual particle fineness is superior to that of man-made and synthetic stone.  Also, the natural particles break away while honing, in turn leading to both longer lasting and more durable edges.  Also, the mineralogy of individual deposits lead to a greater range of specifics.  Such honing creates subtle, distinguishing results, some are more 'crisp', some more 'feathered', certain stones finish well again with the steel of a certain temper, and so on.   Lastly, it is within professional establishment that natural stones do, in fact, harden the edge.

Sharpening-grade novaculite normally produces a range of textures.  These range from those with the appearance of an unglazed porcelain, a porosity of several percent and serves as a good stone for coarse sharpening, to an extremely fine-grained material known for having almost no porosity and as an excellent tool for honing a razor-sharp blade.


About our company

For all types of fine stainless steel alloys, naturally occurring minerals possess many advantages.  At Royal Flint Abrasives Co., mineral specimens specific to the Canadian West are selected for the manufacture and retail of sharpening stones.  Quarried at the naturally occurring deposits and brought into local workshop facilities, RFACo. means to employ sustainable resources of the highest quality to achieve surpassing edges every time.

Royal Flint Abrasives Co.


FINAL PHOTO FOR DISPLAY LISTING ONLY
Note:
 As natural source minerals, items may contain variances and/or irregularities.
Photo set is inclusive as per individual listing description, in effect.
Quarried,  manufactured & produced in the province of Alberta, Canada by RFACo.