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Raw mica on albite chunks for collectors, classrooms and shops, in size grades from #0 up to 7 inches.
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Mica is a group of sheet silicate minerals that includes muscovite, biotite and lepidolite. Its layered structure gives it a perfect cleavage, so it splits into thin, flexible, shiny sheets, and it is soft at about 2.5 to 3 on the Mohs scale. Albite is a white to pale feldspar, and the two often grow together in granite pegmatites.
Stock in this collection is small and changes often, so check each product page for what is available.
Mica is one of the easiest minerals to show to students: the flakes catch the light and can be peeled apart by hand. Rock shops sell chunks as collector pieces and in mineral identification displays next to quartz and feldspar. Keep pieces on a soft base and away from busy hands, as loose flakes can lift off the surface. Some people use mica as a reflection stone in crystal practice, a modern tradition rather than a mineral property.
See also Lepidolite, a lithium-rich mica, Mineral Specimens, Stone on Matrix and Rough Stone Chunks.
Mica is a group of sheet silicate minerals, such as muscovite, biotite and lepidolite, that split into thin shiny sheets.
Albite is a sodium-rich feldspar, usually white or pale. It often grows with mica in granite pegmatites.
It is soft and flakes easily along its cleavage, so handle chunks gently and display them on a padded base.
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