Novacite Silica 1
Microcrystalline Novaculite
| 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
Out Bound Links
Pictures
Emeralds Mix
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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