Catseye specimens, which have a light refracting line that appears to run through the gem, are the most valuable forms of actinolite. Amblygonite is a fluorophosphate mineral that’s found in a range ...

Price per carat:$51-$108.08 Highlights: Amblygonite is usually a light straw color, but it occasionally displays more vibrant shades of yellow, green, blue-green and even lilac. Amblygonite is too ...