8mm Blue Lace Agate Bead Strand d2e543918906ecc7fd64e189d936f36c

8mm Blue Lace Agate Bead Strand d2e543918906ecc7fd64e189d936f36cBlue Lace Agate is a light blue, banded variety of Agate. Agate is a variety of silica composed of alternating layers of various colored chert or quartz. Agates were named after the Acate River in Greece where the stones were originally found. The most accepted theory as to how these Agates formed is that as lava cooled, gas and steam accumulated to form bubbles or cavities. For many eons, water that carried silica penetrated the copper and iron

Malachite is also found as a pseudomorph

Crinoids began life some 530 million years ago

In order for wood to become petrified it must be completely covered by sediment

This comes from the oxidized iron introduced to them during their formation

This material is then catapulted into the air where it cools and lands many miles away from the impact site in the form of a Tektite

The name Ammonite was derived from "ammonis cornua

This comes from small amounts of chromium replacing some of the aluminum

Emeralds have long been associated with beauty

livestock and tools

yet had much stockier bodies

All Southwestern tribes make and use fetishes

to shave off material for making tools and weapons