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Muscovite: KAl2(Si3Al)O10(OH,F)2 Aluminoceladonite: KAl(Mg,Fe++)[ ]Si4O10(OH)2
Comments: Large, 1cm, purple crystals of muscovite/leucophyllite, (var. alurgite which is an intermediate composition to muscovite and leucophyllite (aluminoceladonite). Location: Ultevis, Sweden. Scale: 5x3.5x3cm. © Tom Loomis / Dakota Matrix
Muscovite: KAl2(Si3Al)O10(OH,F)2 Apatite-(CaF): Ca5(PO4)3F Beryl: Be3Al2Si6O18 Apatite: Ca5(PO4)3(OH,F,Cl)
Comments: Pink crystals of fluorapatite with pale blue beryl (aquamarine) on books of muscovite crystals. Location: Nagar area, Gilgit district, Northern Areas, Pakistan. Scale: 3 x 3 cm. © Dan Weinrich
Muscovite: KAl2(Si3Al)O10(OH,F)2
Comments: Pseudo-hexagonal crystalline aggregate of muscovite. Location: Conselheiro Pena, Minas Gerais, Brazil. Scale: Crystal size 2 cm. © Dave Barthelmy
Comments: Seams of green muscovite var. fuchsite in quartz matrix with minor pyrite crystals. Location: Wolfe's Neck locality, Freeport, Cumberland Co., Maine, USA. Scale: 7x5x4 cm. © John Betts - Fine Minerals