Lepidolite
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Lepidolite is the common name for a lilac-gray or rose-colored series of minerals in the mica group. The mineralogical name for this series is the polylithionite-trilithionite series. Lepidolite has a
Boromuscovite Lepidolite ch 38a
Yellow lepidolite from Itinga, Minas Gerais, Brazil. Size: 6.1 x 4.9 x 3.1 cm
Lavender lepidolite "books" from Himalaya Mine, Mesa Grande District, San Diego County, California, US. Size: 4.8 x 3.9 x 3.5 cm
Lepidolite, Virgem da Lapa, Minas Gerais, Brazil (size 2.4 x 2.1 x 0.7 cm)
Rubidium
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Rubidium is a chemical element; it has symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkali metal group, similar to potassium and caesium. Rubidium is the first alkali m
Lepidolite
…It is the most abundant lithium-bearing mineral and is a secondary source of this metal. It is also the major source of the alkali metal rubidium, which substitutes (as in all minerals) for potassium. Lepidolite is found with other lithium-bearing minerals, such as spodumene, in pegmatite bodies…
Rb 5
Partially molten rubidium metal in an ampoule
Rubidium crystals (silvery) compared to caesium crystals (golden)
Flame test for rubidium