A mineral selection of andalusite with carbonaceous impurities on a regular basis arranged along the longer axis of this crystal.
An aluminosilicate mineral having carbon inclusions, multiple andalusite.
A variety of andalusite; -- labeled as in addition macle. The tessellated appearance of a cross section is because of the shaped arrangement of impurities into the crystal.
a number of andalusite, peculiar within the tessel-lated look which it provides when cut transversely and polished. The dark portions are caused by symmetrically organized impurities when you look at the crystal. Also known as macle.