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Comments: Dense tuft of hair-like millerite crystals.
Location: Kerr-Addison mine, Timmons, Ontario, Canada.
Scale: Tuft height 5 cm.
© Dave Barthelmy
Comments: Fragile, acicular crystals of metallic yellow millerite in a vug.
Location: Hall's Gap, Lincoln County, Kentucky, USA.
Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals