Minspar 1
Description: Coarse grained glass feldspar
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 1.50% | 0.15 | |
| K2O | 4.10% | 0.25 | |
| Na2O | 6.50% | 0.60 | |
| Al2O3 | 18.50% | 1.04 | |
| SiO2 | 68.60% | 6.52 | |
| Fe2O3 | 0.06% | - | |
| LOI | 0.30% | n/a | |
| Oxide Weight | 566.87 | ||
| Formula Weight | 568.58 | ||
Notes
Spruce Pine, NC
A minus 30 mesh feldspar product used in the glass container and ceramic tile markets.
Physical Properties
===================
Specific Gravity: 2.6
Refractive Index: 1.53
Mohs Hardness: 6-6.5
Mean Particle Size, microns: n/a
Specific Surface Area, sq metre/g: n/a
Dry Brightness (Green Filter): n/a
Raw color: white
pH: n/a
% Moisture Content: 0.1
Bulk Density (lb/cu. ft)
Loose: 95.0
Packed: 100
Structure: Crystalline
Particle Shape: Granular
Particle Size: 16 20 30 40 100 140 170 200 325
% Retained 0.0 0.0 0.7 11.3 60.0 12.0 10.0
U.S. Sieve Series
Related Information
Links
| Typecodes |
Feldspar
The most common source of fluxes for high and medium temperature glazes and bodies. |
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