Brahin features numerous centimeter scale olivines, which provide ample interference colors. The specimen cut for these thin sections also included a large crystal oriented such that the optic axis is perpendicular to the faces of the section. This means there is quite limited interference color variation within that specific crystal. While this is less dramatic, it illustrates another key property of birefringent crystals.
This Brahin was purchased from Steve Arnold, star of the Discovery Channel show, "The Meteorite Men".
Brahin, (Large Olivines)
Your PetroViewer thin section of Brahin boasts lovely large crystals, and displays very well under the magnification of a 15X lens, affording a brighter image.
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