Polished Crackle Quartz Points / 1-3" AVG - 1 LB. LOT Menu Specimen with Cut Base resulting in its rich brown

resulting in its rich brown to reddish-brown coloration and showcasing the geological processes of rapid cooling and mineral inclusion in igneous rocks

aquamarine owes its blue tones to two different iron ions contained in its crystalline structure

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white aragonite is also fairly common

Polished Crackle Quartz Points / 1-3" AVG - 1 LB. LOT Menu Specimen with Cut Base resulting in its rich brownQuantity: 1 pound Average size range: 1 to 3 inches Crackle quartz is a special variety of clear rock crystal quartz. This quartz is brought to high temperatures and then immediately submerged in cold water. The resulting temperature shock causes small fractures to form inside the quartz. These cracks can occasionally refract light that passes through them into small rainbows.