10mm White Topaz Necklace 7c5bef2fa1a803ca837b6903776df4a7 The patterning is due to

The patterning is due to traces or iron or manganese that seep into the stone from neighboring sources during the growth period

called a core

Dendritic Agate can be translucent or opaque and typically white or gray

Topaz comes in many different hues

Emeralds receive their beautiful green coloration from trace amounts of Chromium

10mm White Topaz Necklace 7c5bef2fa1a803ca837b6903776df4a7 The patterning is due toTopaz comes in many different hues such as yellow, blue , colorless, green, or the very rare red topaz. Topaz occurs in the igneous rock rhyolite, or granite and is found in tiny cavities within these rocks. It is used in jewerly making, and also has industrial uses because it has a lot of qualities such as heat resistance. Gemstones that are cut can really be valuable.