F-4 Feldspar
Sodium Feldspar
Chemistry
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Volatiles
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Links to Other Materials
- C-6 Feldspar - Alternative
- Nepheline Syenite - Related
- Cache
Miscellaneous
- Family: Feldspar
- Region: North America
- Mined At: Unspecified
- Raw Mineral: No
- Generic: No
Notes
Shipped from Spruce Pine, North Carolina.
Particle sizes:
+100 mesh: trace
+140: .1
+170: .1
+200: .2
+325: 3.8
This material is prized as a porcelain ingredient because of its low iron content. It is used in casting and throwing porcelains of all types. At cone 6 for example, it is possible to make a vitreous body using 50-60%. However to get enough plasticity in such bodies, it is necessary to use ball clay or bentonite which can darken the color. If high plasticity is not essential, Macaloid and plastic kaolins can be used.
Another similar material is Nepheline Syenite.
Suppliers
- Feldspar Corp.
Authors
- Tony Hansen (Owner)
XML
<?xml version="1.0" encoding="UTF-8"?>
<material name="F-4 Feldspar" descrip="Sodium Feldspar" generic="0" rawmineral="0" searchkey="F4 Feldspar, Kona Feldspar, Kona F4, F4 Spar, F 4 Feldspar" loi="0.20">
<families>
<family name="Feldspar"/>
</families>
<regions>
<region name="North America"/>
</regions>
<oxides>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="U" percent="1.700" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="U" percent="0.050" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="U" percent="4.800" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="U" percent="6.900" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="19.600" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="66.800" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.040" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="" name="" percent="0.200" tolerance=""/>
</volatiles>
<references>
<reference name="seealso" reason=""/>
<reference name="seealso" reason=""/>
</references>
<suppliers>
<supplier name="Feldspar Corp." country="US" url="www.zemex.com/feldspar" label=""/>
</suppliers>
<notes>
<note>Shipped from Spruce Pine, North Carolina.
Particle sizes:
+100 mesh: trace
+140: .1
+170: .1
+200: .2
+325: 3.8
This material is prized as a porcelain ingredient because of its low iron content. It is used in casting and throwing porcelains of all types. At cone 6 for example, it is possible to make a vitreous body using 50-60%. However to get enough plasticity in such bodies, it is necessary to use ball clay or bentonite which can darken the color. If high plasticity is not essential, Macaloid and plastic kaolins can be used.
Another similar material is Nepheline Syenite.</note>
</notes>
</material>
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