MINEX has been proven to retard the effects of UV attack, minimizing changes in gloss, color, and physical integrity of coatings over prolonged exterior exposure. Slightly harder than traditionally used powder fillers, MINEX improves film hardness and scratch resistance.
What is minex 7?
MINEX® 7 by Sibelco Specialty Minerals is a micronized functional filler and extender. It is produced from nepheline syenite which is a naturally occurring, silica deficient, sodium-potassium alumina silicate.
How is nepheline syenite made?
Nepheline syenite and phonolite may be derived by crystal fractionation from more mafic silica-undersaturated mantle-derived melts, or as partial melts of such rocks. Igneous rocks with nepheline in their normative mineralogy commonly are associated with other unusual igneous rocks such as carbonatite.
Is nepheline syenite toxic?
Acute Toxicity Values: No acute toxicity data is available for product. No ecotoxicity data is available. This product is not expected to present an environmental hazard. Waste Disposal Method: Nepheline Syenite is not classified as a hazardous waste under US EPA RCRA regulations.
Is nepheline a rock or mineral?
feldspathoid mineral
Nepheline is an important feldspathoid mineral. It is white, grey or yellow in colour with a vitreous lustre and a poor cleavage. The name Nepheline comes from the Greek word nephele, which means “cloud,” because it becomes strongly clouded when put in strong acid. Nepheline only forms in silica-poor rocks.
Where is nepheline syenite found?
Nepheline syenite and its associated igneous rocks are exposed in 4 areas of the state: south-central Pulaski County between Little Rock and Sweet Home, Saline County in the vicinity of Bauxite, Garland County at Potash Sulphur Springs, and Hot Spring County at Magnet Cove.
What is nepheline made of?
Nepheline syenite is a holocrystalline plutonic rock that consists largely of nepheline and alkali feldspar. The rocks are mostly pale colored, grey or pink, and in general appearance they are not unlike granites, but dark green varieties are also known….Nepheline syenite.
| Composition | |
|---|---|
| Secondary | magnetite, ilmenite, apatite, titanite |
How can you tell nepheline from quartz?
Distinguishing Features Resembles feldspars but nepheline is uniaxial, lacks good cleavage and twinning, and has a low birefringence. Nepheline is softer than quartz and differs in optic sign.
Where can I get a nepheline?
Nepheline only forms in silica-poor rocks. It is almost never associated with quartz. It may be found in some contact metamorphosed rocks otherwise it occurs in alkaline complexes in igneous rocks. Nepheline is mostly found in the rock Nepheline Syenite in nature.
What does nepheline look like?
Nepheline syenite is a holocrystalline plutonic rock that consists largely of nepheline and alkali feldspar. The rocks are mostly pale colored, grey or pink, and in general appearance they are not unlike granites, but dark green varieties are also known. Phonolite is the fine-grained extrusive equivalent.
How can you tell the difference between quartz and nepheline?
Resembles feldspars but nepheline is uniaxial, lacks good cleavage and twinning, and has a low birefringence. Nepheline is softer than quartz and differs in optic sign. Nepheline occurs in alkali-rich, silicon poor igneous rocks (nepeline syenite, foidite and phonolite).
What is Minex 7 used for?
MINEX® 7 by Sibelco Specialty Minerals is a micronized functional filler and extender. It is produced from nepheline syenite which is a naturally occurring, silica deficient, sodium-potassium alumina silicate. It is used in waterborne, high-solids, solvent-based, alkyd-, oil- and powder coatings.
What is Minex® made from?
MINEX® fillers are produced from nepheline syenite; a naturally occurring, silica deficient, sodium-potassium alumina silicate. Automated scanning electron microscopy confirms that MINEX contains less than one-tenth of one percent crystalline silica.
What is the composition of Minex functional filler?
MINEX functional filler is produced from nepheline syenite, a naturally occurring sodium-potassium-aluminum silicate. Additionally, no detectable crystalline silica dust in the MINEX mineral complex. Contact us today at 1-800-243-9004 or [email protected], or by filling out this form.
