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Cerium
Oxide
Our high quality, 85% purity, optically graded cerium, is excellent for
polishing glass. One of the
best all-purpose polishes. Also
used to polish quartz, agate, opal, obsidian, etc
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New Super Cerium
Oxide
Our highest quality cerium.
This optically graded cerium is white rather than the reddish color of
most cerium’s. It has a
finer mesh and gives an incredible luster to all glass.
Works well on all hard stones from obsidian to agate.
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New Spray Bottle with
Super Cerium Oxide
Comes complete with initial load of Covington super
cerium. Just add water and
spray onto polishing pad to begin.
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Chrome
Oxide Polish
A hard polishing agent, green in color.
Used to polish jade, garnet,
rhodonite,
and lapis.
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Covington's
Gold Label Polish #1
99% pure
micro alumina polishing powder. Excellent for vibrating tumblers, lappers,
and ultrasonic machines. Great for Petrified woods, Agate,
Rhodocrosite, Jade and other stones. Approximate size 2 - 3 microns
and a 9 on the MOHS scale.
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Covington's
Gold Label Polish #2
99% pure
micro alumina polishing powder. Excellent for vibrating tumblers, lappers,
and ultrasonic machines. Works especially well with Leather or
Felt. Great for super fine polish on all hard and soft stones.
Approximate size .5 microns and a 9 on the MOHS scale.
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Covington
Tumbler Polish (White Alumina)
98% pure levigated alumina polish powder. Excellent for tumbling,
pre-polishing,
and plate lapping.
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Linde
'A' Polish
A .3 micron alumina powder that is 99.98% pure aluminum oxide polishing
powder with a 9 mohs hardness. A
super polish for almost any gemstone.
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Oxalic
Acid
A cleaning powder used to remove iron stains from gemstone slabs.
Comes in crystallized form and needs to be added to water.
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Pumice, 1 (Coarse)
Good for mild grinding of glass surfaces.
More abrasive than 0 - 1/2
pumice.
Used with cork belts, wheels, or discs.
Can be applied with wet rag or felt block. Sand like in
appearance.
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Pumice, 0 - 1/2D (medium) Dental Grade
Great
for light grinding. More abrasive than 2F
pumice.
Used with cork belts, wheels, or discs.
Can be applied with wet rag or felt block.
Fine sand like appearance.
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Pumice,
2F (medium fine)
Used to remove grease or stains from glass surfaces.
More abrasive than 4F
pumice.
Excellent pre-polish on glass.
Used with cork belts, wheels, or discs.
Can be applied with wet rag or felt block.
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Pumice,
4F (very fine)
Used on cork belts, wheels, or discs for semi-polishing
the edges or bevels on glass plate. Less
abrasive than 2F. Excellent
pre-polish on glass.
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Red
Rouge Powder
Inexpensive polish powder used for tumbling.
Often used with walnut shell to polish brass.
A good final polish for glass and obsidian.
Also used with felt belt to polish glass and metals.
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Tin
Oxide
99.9%
Ultra High purity tin oxide. Over 85% particle
size distribution 1 micron or less, and 58% is .37 micron.
Excellent polishing on almost any gemstone including hard to polish
stones.
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Tripoli
Polish
A good pre-polish compound. Cream
color polishing is compound.
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