- a variety of the mineral andalusite having cruciform carbonaceous inclusions.
Origin of chiastolite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a variety of andalusite containing carbon impuritiesAlso called: macle
C19: from German Chiastolith, from Greek khiastos crossed, marked with a chi + lithos stone