Discovered in the eighteenth century, it is not a typical gemstone, but a very beautiful purplish type of mica that contains a substantial portion of lithium and is the Earth’s most common lithium-bearing mineral. Lepidolite is from the Greek ‘lepidos’, meaning ‘scale’, and ‘lithos’, meaning ‘stone’. Lepidolite was uncommon mica but in recent years Brazilian finds have made it much more available on the mineral market. Lepidolite, like other micas, has a layered structure of lithium aluminum silicate sheets weakly bonded together by layers of potassium ions. These potassium ion layers produce the perfect cleavage.
The typical violet to pink color of Lepidolite is characteristic and is the only field test available to identify Lepidolite from other micas. Pink muscovite or very pale Lepidolite may confuse identification. Since Lepidolite colors can be confusing, a melting and flame test is desirable if
there is any reason - such as the presence of colored tourmalines or of other lithium minerals for suspecting mica to be Lepidolite, rather than the commoner muscovite. The fluorescence and flame tests will also distinguish some of the more intensely colored chromium chiorites, dumortierite, and similar hydrous silicates.
Lepidolite crystals accompany other lithium bearing minerals such as tourmaline, amblygonite and spodumene. Lepidolite crystals can add character and value of these specimens. Crystals can be tabular or prismatic crystals with a prominent pinacoid termination. Lepidolite's four prism faces and two pinacoid faces form pseudo-hexagonal crystal "books". Well developed crystals with a Sharp hexagonal outline are rare. The sides of the crystal often tend to taper. Sometimes borders ordinary muscovite mica, but the cleavage flakes are not quite continuous. Commonly occurs in medium to fine-grained aggregates; One- to two-inch crystals, tapering down to a
slender point and more prismatic than tabular, occur at some localities.
Traditional properties of Lepidolite include protection from outside influences, relieve everyday stress, and promote restful sleep when placed near your pillow, attracts good luck and drives away negativity.
Lepidolite provided by Panther Creek Minerals, San Antonio, Texas.
Researched from various websites, mineral-rock-gem and crystal books.
Discovered in the eighteenth century, it is not a typical gemstone, but a very beautiful purplish type of mica that contains a substantial portion of lithium and is the Earth’s most common lithium-bearing mineral. Lepidolite is from the Greek ‘lepidos’, meaning ‘scale’, and ‘lithos’, meaning ‘stone’. Lepidolite was uncommon mica but in recent years Brazilian finds have made it much more available on the mineral market. Lepidolite, like other micas, has a layered structure of lithium aluminum silicate sheets weakly bonded together by layers of potassium ions. These potassium ion layers produce the perfect cleavage.
there is any reason - such as the presence of colored tourmalines or of other lithium minerals for suspecting mica to be Lepidolite, rather than the commoner muscovite. The fluorescence and flame tests will also distinguish some of the more intensely colored chromium chiorites, dumortierite, and similar hydrous silicates.
slender point and more prismatic than tabular, occur at some localities.
