Green Tremolite Value Guide

This massive mineral specimen showcases the classic prismatic, elongated green tremolite crystals that have made the Tremola Valley in Switzerland a legendary locality since 1789. As a member of the amphibole group formed through the metamorphism of dolomite and quartz, these 2020-2024 era specimens are highly prized by mineral enthusiasts for their distinct fibrous habits.

What Is Green Tremolite Worth?

The typical price range for Green Tremolite is $165 - $180 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• The intensity and uniformity of the green hue across the prismatic crystal faces.
• The overall size and structural integrity of the massive fibrous cluster.
• The precision and length of the individual elongated crystals within the matrix.
• Market demand for contemporary Swiss specimens sourced between 2020 and 2024.

How to Identify Green Tremolite?

• Look for the characteristic elongated, prismatic crystal structure forming in dense, fibrous clusters.
• Verify the origin as the Tremola Valley, Switzerland, which is the type locality for this specific mineral species.
• Check for the distinct green coloration typical of magnesium iron silicate hydroxide compositions.
• Examine the specimen for the specific amphibole group cleavage patterns and glassy to silky luster.

History of Green Tremolite

Tremolite was first described in 1789 and named after the Tremola Valley in Switzerland where it was discovered. It belongs to the amphibole group of silicate minerals and often forms through the metamorphism of sediments rich in dolomite and quartz. While it has historical industrial uses, it is primarily collected today by mineral enthusiasts for its distinct crystal habits.