including navigation and the development of polarizing microscopes

This is a fantastic Dhofar 019 martian basaltic shergottite classified meteorite

This is a superb looking Dhofar 221 classified meteorite weighing 8

Weight:  31

It is a large specimen in good condition

Calcite with Hematite on Matrix | 160.5 grams | Fluorescent Crystal | Lane's Quarry, Westfield MA Mimetite including navigation and the developmentThis is a natural cluster formation of large calcite crystals with hematite inclusions. This piece has some white color to translucent crystals with areas of orange red coloring from hematite inclusions, with sharp tabular crystal formations. There are some nicks and imperfections on a few crystals but would still shine in the proper setup. They don't take away from how interesting this piece is. Would be a nice addition to any new or existing