San Carlos peridotite with chrome diopside and spinel in volcanic basalt, vivid gemmy color Quartz Approx dimensions: 5 x 4

Approx dimensions: 5 x 4 x 2"

and some pieces have hollow cores

UV reactivity Near the geode entrance

This specimen does exhibit these features

Approx weight: 252g

San Carlos peridotite with chrome diopside and spinel in volcanic basalt, vivid gemmy color Quartz Approx dimensions: 5 x 4Locale: San Carlos Apache Reservation, Arizona Approx dimensions: 3 x 2 x 1. 5" Approx weight: 220g 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 minerals