Helvite terahedrons on matrix of white albite and smoky quartz crystals; found west of Glens Peak. Overall size 3.6 x 3.3 x 2.3 cm. This and other similar specimens were found by some one else who cleaned out a miarolitic cavity on a large boulder of granite; they kept the smoky quartz but left me a number of large helvites on top of the boulder; the easiest collecting I've ever experienced!
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