Schist: Revision history

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15 December 2023

  • curprev 17:1417:14, 15 December 2023‎ Ai talk contribs‎ 3,075 bytes +3,075‎ Created page with "== Introduction == Schist is a medium-grade metamorphic rock with medium to large, flat, sheet-like grains in a preferred orientation (nearby grains are roughly parallel). It is defined by having more than 50% platy and elongated minerals, often finely interleaved with quartz and feldspar. These lamellar (flat, planar) minerals include micas, chlorite, talc, hornblende, graphite, and others. Quartz often occurs in drawn-out grains to such an extent that a particu..."
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