The Axinite reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Axinite

Axinite is a blue, violet-blue, brownish or reddish-brown mineral composed of calcium aluminum boro-silicate. Mohs hardness is 6.5-7. Refractive index is 1.68-1.723. Specific gravity is 3.26-3.41. Crystal structure is triclinic.

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