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Novacite Silica 1

Microcrystalline Novaculite

Alternate Names: Whetstone

Oxide Weight101663.40
Formula Weight101663.40
If this formula is not unified correctly please contact us.
DENS - Density (Specific Gravity) 2.65
XREF - Index of Refraction 1.55
OLAD - Oil Adsorption (Spatula) 17-20%
PSHP - Particle Shape (1-7 microns) Platey (over 7 microns): Clusters
HMOH - Hardness (Moh) 7
DNLP - Density, loose packed (lbs/cu fut) 50 lbs/cubic foot
SADR - Sieve Analysis Dry Percent finer that 74 microns: 99 53 microns: 98 44 microns: 93-98 10 microns: 36 Average parti
pHPW - pH for dry powder 6.0-7.8

Novacite® is a quartz silica unique in the extender/filler market. Graded by micron size, the individual, unagglomerated particles tend toward a platey structure, which promotes superior leveling, meshing and wear-resistance in many performance applications.

Mined and processed in Hot Springs, Arkansas, USA. The product is a "rotted", or powdered form of Novaculite mineral. It is also known as Arkansas Whetstone because it is a massive white quartz rock used to make whetstones for sharpening knives.

According to the Arkansas Geological Commission it is "a sedimentary rock composed mostly of microcrystalline quartz and is a recrystallized variety of chert. It is dense, hard, white to grayish-black in color, translucent on thin edges, and has a dull to waxy luster.".

Typical applications other than ceramics include casting resins, potting compounds, molding compounds, abrasive medium (wet blasting), latex paints.

Color (Dry): White
Color (Wet): Grey
Particle Shape (1-7 microns): Platey (over 7 microns): Clusters
Specific Heat (mean 0-200C): 192 cal/g/degree C
Surface Modification: Very Receptive

Emeralds Mix

Out Bound Links

By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Novacite Silica 1" descrip="Microcrystalline Novaculite" searchkey="Whetstone" loi="0.00" casnumber="7631-86-9"> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.010" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.020" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.010" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="0.100" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="99.490" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.040" tolerance=""/> </oxides> </material>

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