San Carlos peridotite with chrome diopside and spinel in volcanic basalt, vivid color Barite but the bulk of the

but the bulk of the growth is triangular

From the back

'Agate' refers to chalcedony with banded color

This is displayed especially well on this point

San Carlos peridotite with chrome diopside and spinel in volcanic basalt, vivid color Barite but the bulk of theLocale: San Carlos Apache Reservation, Arizona Approx dimensions: 2. 25 x 2. 25 x 2" Approx weight: 300g While this material is commonly called peridot in (or on) basalt, it is actually more complex. It would be more accurately called a peridotite xenolith in basalt. Peridot is the gem quality version of the mineral olivine, which is common in our Earths upper mantleand even in space. In comparison, peridotite is a combination of several types of