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Riolite S1
Chemistry
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Mineralogy
- Quartz: 50
- K-Feldspar: 30
- Kaolinite: 12
Miscellaneous
- Family: AlumSilicate
- Region: Europe
- Mined At: Unspecified
- Raw Mineral: No
- Generic: No
Notes
Riolite S is similar but in a coarser size.
Riolite is a rock containing as essential minerals: quartz (50%), potassium feldspar (30%), kaolinite (12%) and accessory minerals (8%).
Riolite is currently used in the ceramics industry for the production of red single-fired tiles and in the refractory industry. With chemical and physical properties similar to those of Maffei pegmatite used in single-fired whiteware, riolite is utilized for its special characteristic of being totally without organic impurities. After being properly crushed and sieved, riolite is also used in single-fired whiteware; in mixtures with aplite, it forms eutectic points at lower temperatures than either component singly, without altering the sintering range. Research is underway to investigate the possible applications of riolite in porcelain stoneware.
The Maffei Group riolite quarry is an open-pit mine.
Data
- Ultimate Particle Size Distribution
0-6mm - pH: 8-9
- Hardness (Moh): 5-6
- Density: 2.4
- Bulk Density g/cc: 1.4
Suppliers
- Maffei Natural Resources
Authors
- Tony Hansen (Owner)
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