It is occurs several minerals such as lepidolite, pollucite, amazonite.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

It is occurs several minerals such as lepidolite, pollucite, amazonite, etc.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

A small number of American companies process rubidium ore (lepidolite).    From Wordnik.com.  [Rubidium] Reference

Petalite is found in the minerals spodumene, lepidolite mica, and amblygonite.    From Wordnik.com.  [Lithium] Reference

The mica group of minerals includes: biotite, muscovite, lepidolite, and phlogopite.    From Wordnik.com.  [Vermiculite] Reference

Most rubidium is retrieved from the minerals lepidolite (a mica mineral) and pollucite.    From Wordnik.com.  [Rubidium] Reference

Dürkheim; it is also found in lepidolite, leucite, petalite, triphylline and in the carnallite from Stassfurt.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference

In addition to the silicate tetrahedrons in all micas, Purple lepidolite contains the elements potassium, lithium, and aluminum.    From Wordnik.com.  [Mica] Reference

According to R. Bunsen, the best source of rubidium and caesium salts is the residue left after extraction of lithium salts from lepidolite.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference

These include the cesium - and potassium-rich zeolites, pollucite and leucite, and the lithium-rich mica, zinnwaldite (a variety of the mineral lepidolite).    From Wordnik.com.  [Rubidium] Reference

Like, I've got cacoxenite bears, and lepidolite bears, and bears I can't begin to identify.    From Wordnik.com.  [Making Light] Reference

You will notice over time, the lepidolite eventually becomes paper thin as it absorbs the radiation.    From Wordnik.com.  [Jayvee Fernandez on Technology and New Media in the Philippines] Reference

However, the dikes on First Gold's property contain more spodumene and a large amount of lepidolite (associated with rubidium).    From Wordnik.com.  [Marketwire - Breaking News Releases] Reference

Spodumene and lepidolite (a potassium lithium aluminum silicate) can form centimetric lenses locally composing up to 40% of the pegmatites.    From Wordnik.com.  [Marketwire - Breaking News Releases]

Like, I’ve got cacoxenite bears, and lepidolite bears, and bears I can’t begin to identify.    From Wordnik.com.  [Making Light: Pretty rocks] Reference

Spodumene and lepidolite.    From Wordnik.com.  [The Earth Times Online Newspaper] Reference