"Lepidolite crystals" - Dunton quarry, Newry, Maine
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| Muscovite is one of my favorite species. Oddly, muscovite and other micas are relatively scarce in well-shaped crystals. Here are several microscopic features seen growing on the side of mica books. The field of view is about 5 mm or less. | ||||||||||||||||||||||
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| Muscovite (shelf-mushroom texture), Emmons Quarry, Greenwood, Maine | ||||||||||||||||||||||
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| Typical "mica stacks" grown on the side of large mica books. This growth feature is common on micas formed in gem pockets of pegmatites. Pocket environment crystals frequently show a history of etching with regrowth on those minerals. Muscovite, Emmons Quarry, Greenwood | ||||||||||||||||||||||
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| Crystal Edges sticking out of the sides of mica books. "Lepidolite crystals" - Dunton quarry, Newry, Maine |
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