Browsing by Subject "Crystal growth"
Now showing items 5-7 of 7
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Rhombohedral vs. Prism Sector Zones in Hydrothermal Quartz Crystals : Implications for Growth Dynamics
(2019-05)Gemmy hydrothermal quartz crystals typically exhibit each of their six prism and six rhombohedral crystal faces. However, discerning which of the crystal faces were actively growing at any given time during construction ... -
Why do such large crystals form in pegmatites?
(St. Croix Rockhounds, Stillwater, MN, 1987) -
Why pyrite crystals have different shapes
(St. Croix Rockhounds, Stillwater, MN, 1994)