Gemmy acicular REALGAR etched from calcite on brecciated rock matrix Royal Reward Mine, near Franklin, King County, Washington, USA Horizontal field of view is ~0.6 cm Self-collected in January 2017 Photo Copyright © 2017 Jeffrey M. Schwartz
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Gemmy acicular REALGAR etched from calcite on brecciated rock matrix Royal Reward Mine, near Franklin, King County, Washington, USA Horizontal field of view is ~0.6 cm Self-collected in January 2017 Photo Copyright © 2017 Jeffrey M. Schwartz
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