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A collection of brilliant smoky quartz, some of which crystallized in the same direction, corresponding in fact to epitaxial growth with feldspars that were subsequently dissolved (remnants are still present). A few fine arfvedsnonite needles are present between the quartz.
8 x 6 x 7,5 cm.
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Long bright crystals of aegyrin on orthoclase. Two tips...
A crystallized plate of shiny smoky quartz, some of them...
Dull smoky quartz crystals associated with more or less...