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| Product Name: | lepidolite | | Synonyms: | lepidolite;lepidolite ISO 9001：2015 REACH | | CAS: | 1317-64-2 | | MF: | AlFH9KLiO7Si2(-3) | | MW: | 269.25 | | EINECS: | | | Product Categories: | | | Mol File: | 1317-64-2.mol |  |
| | lepidolite Chemical Properties |
| | lepidolite Usage And Synthesis |
| Description | Before spodumene became the sole ore for the recovery of lithium for chemical use, lepidolite was used as a lithium source.
One process for recovery of lithium from lepidolite used sulfuric acid in a procedure similar to that used by the Lithium Corporation of America for spodumene. A more recent method involved heating a mixture of lepidolite and potassium sulfate to just below the melting point and extracting the mixture with water to recover a solution of lithium sulfate.
| | Chemical Properties | Lepidolite is named after the Greek word Lepidos, which means "scale". This is due to the typical formation of the mineral in scale-like clusters. Lepidolite contains between 1.23% to 5.90% lithium oxide and has a monoclinic crystal system with dimensions a=5.3, b=9.2, c=10.2, and β=100°. The crystal symmetry is m or 2/m, with pseudo-hexagonal plates forming fine scale-like clusters. Its attractive light purple color is combined with a glass luster, a hardness of 2-3, and a relative density of 2.8-2.9. There are over 150 minerals containing lithium, but only 30 of these are independent lithium minerals. The most important of these minerals is spodumene, followed by lepidolite. | | Agricultural Uses | Lepidolite, a variety of mica, is a fluorosilicate of
potassium, lithium and aluminum found in pegmatites.
Generally, rubidium occurs as an impurity. |
| | lepidolite Preparation Products And Raw materials |
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