What a terrific and unusual thumber of Mexican apatite! First, you have this very bright and gemmy central yellow-green crystal, complete and terminated. The apatite growing next to it is a reddish color due to hematite inclusions, which provides a pretty contrast with the main crystal. And, you also have, around the base, sharp octahedral crystals of hematite that has pseudomorphed (replaced) the original magnetite crystals! 2.7 x 2.0 x 1.9 cm