San Carlos peridotite with chrome diopside and spinel in volcanic basalt, vivid gemmy color Geode There are quite a few

There are quite a few colors and varieties of picture jasper

it makes up for in form

with tones of brown

Approx size: 1–2

but an aggregate of small shard-like pieces

San Carlos peridotite with chrome diopside and spinel in volcanic basalt, vivid gemmy color Geode There are quite a fewLocale: 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