Unakite Tumbled Stone Value Guide

Unakite is a distinctive variety of granite first discovered in the Unaka Range of North Carolina and currently recognized as the state rock of Virginia. This metamorphic rock is highly collectible among lapidaries for its unique mottled appearance and its ability to achieve a mirror-like finish when tumbled.

What affects the value of Unakite Tumbled Stone?

• Color balance: Specimens with an even distribution of pink and green are generally more desirable.
• Polish quality: Tumbled stones should be free of pits, cracks, or dull spots to reach the $3.00 price point.
• Size and weight: Larger tumbled pieces command higher prices within the $1.50 to $3.00 range.
• Clarity of minerals: Distinct, sharp boundaries between the epidote and feldspar increase aesthetic value.

How to Identify Unakite Tumbled Stone?

• Look for the signature 'pistachio' green color provided by the epidote content.
• Identify salmon-pink patches which indicate the presence of orthoclase feldspar.
• Check for a smooth, glassy surface texture that reveals clear quartz inclusions under bright light.
• Verify the origin as the United States, specifically from the Appalachian region where it was first documented.

History of Unakite Tumbled Stone

First discovered in the Unaka Range of North Carolina, this unique granite variety is often used in jewelry and decorative objects. It is the state rock of Virginia and is frequently sought after by lapidaries for its distinctive mottled appearance and ability to take a high polish.