RUTILE
Specimen rut-30
$ 84.00Dims: 2.95x1.46x0.59" (7.5x3.7x1.5cm)
Wt: 2.52oz (71.2g)
Itamarandiba, Minas Gerais, Brazil
This is a very nice and unusual specimen of rutile. It is a reticulated twin formation, in which broad, flat rutile crystals are intergrown at exactly 60 degree angles. These crystals are up to a millimeter thick atop a flat piece of hematite. The crystals are nicely striated, adding visual strength to the six-sided pattern. There are apparently two slightly different orientations of the crystals, which are independently preserved over significant distances in this specimen.