Dims: 1.9" x 1.6" x 0.8" (4.8 x 4.1 x 2.0 cm)
Wt: 1.11 oz. (31.6 g)
Poona, Maharashtra State, India
One of the more unusual forms of Datolite, this specimen represents a massive form that the mineral takes on rare occasions. There are several other materials in the specimen, though, including a substantial amount of quartz and maybe a bit of basalt rock. One face has been cut into the piece to make viewing easier. The Datolite occurs in an oolitic form, with a color that ranges from an opaque, dark, brick-red to a nearly transparent colorlessness. There is also some material that has the grassy, yellow-green color of pyromorphite, though I am sure that that is not what the material is.