What's That Rock?

Schist

Rock

A metamorphic rock full of flat, shiny mineral flakes (usually mica) that give it a glittery, wavy look.

How to identify Schist

  1. Shimmering with mica flakes
  2. Splits into uneven, wavy layers
  3. May contain garnet, staurolite or kyanite crystals

Often confused with

Is Schist valuable?

Common.

What changes the price

  • Common rock: low value as a specimen
  • Pieces with garnet, kyanite or staurolite crystals can be inexpensive collector items
  • Landscape stone is priced by the ton

Uses

  • Building stone, source of garnet

Care

Flaky. Handle gently.

Identifying a stone from a description or a photo is an estimate. Many stones look alike. Ask an expert or a gem lab before you buy, sell or rely on an identification.

Updated October 2026