Industrial Fire Assay Ceramic Crucible
1. Long Lasting, can be used many times;
2. Can withstand repetitive thermal shocks from 1300 degree Celsius degree to room temperature;
3. Special formula,curing and pressing process;
4. Can withstand extremely corrosive fire assay environments;
5. High mechanical strength designed to withstand sever thermanl shocks.
Top diameter 90mm;Bottom diameter 58mm;High 160mm.
1. Refractoriness:1650 centigrade degrees;
2. Refractoriness under load:1420 centigrade degrees;
3. We can supply the products according to customer's drawings, samples and performance requirement.
A mineral is a naturally occuring, homogeneous, solid with a crystalline atomic structure. Crystallinity implies that a mineral has a definite and limited range of composition, and that the composition is expressible as a chemical formula. Some definitions of minerals give them as inorganic materials, however both diamonds and graphite are considered minerals, and both are primarily comprised of carbon, which would make them organic. So this leads me, as an engineer, to believe that mineralogists do not have a good, precise definition of a mineral, but rather a loose definition. The definition above, is the most inclusive and would include all substances currently described as minerals. The key items that make something a mineral are occurring naturally, and the definite crystal structure, that is expressible as a chemical formula. Rocks that do not meet this criteria are referred to as amorphis - not having a definite structure or expressible as a chemical formula. Some elements that occur naturally and are minerals are arsenic, bismuth, platinum, gold, silver, copper, and sulphur