Gemology Tools Quiz Test your knowledge of the gemology tools discussed in this article Click on the link at the end of the quiz for the answers 1 Gemology is best described as studying Color hardness and clarity of gems The origins of gems The physical and optical properties that make gems unique[email protected]
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Both people and plants need potassium. In plants it is essential for water uptake and for synthesizing plant sugars for use as food. It also is responsible for crop formulation and quality. Commercial bloom foods contain high amounts of potassium to promote more flowers of better quality. Potash in soil is the initial source for the uptake in plants.
For the treatment of manganese ore a jig and a shaker were used respectively and the recovery rate of the MnO obtained by the reselection of the jig was 51 54 the recovery rate of shaker gravity separation was 91 11 2 2 Magnetic separation Manganese ore is mostly weakly magnetic
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Denim Lapis Denim lapis is a relatively pale, inexpensive variety of lapis lazuli that is from Chile. It is the color of denim cloth due to calcite inclusions which whiten the stone and lower its value. Dentelle Dentelles meaning lace in French are rhinestones cut with 32 or 64 facets. Denim Lapis See Lapis
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