micaceous

Meanings

1. 1
   adj

   containing or consisting partly of mica

   Thin flakes glittered throughout the micaceous slate.

2. 2
   adj

   resembling mica by being flaky, layered, or sparkling

   The mineral broke along a micaceous, silvery surface.

From mica + -aceous, 'having the nature of or containing.' Mica comes from Latin mica, 'crumb or small piece.' The adjective was formed in scientific English for rocks and minerals that contain mica or share its flaky, gleaming appearance.

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