The Prehnite is the lighter green color and the epidote is the darker green color. The epidote in these hearts range from needle size to larger chunks. Approximate sizes are: 1.55" across x 1.45" tall .8" thick. The actual size of the heart you receive my be slightly larger or smaller.
We're excited to intuitively select a heart for your from our inventory. The pictures are a representation of what we have in stock.