Richard Kosnar's previous collection on EarthWonders

For sale Recently Added Under $500 Featured

Sellers Collections My Collection About Services Wiki Events

Richard Kosnar

All Shop Collection Previous Collection

Amethyst image

Small Cabinet

Gratonite image

Miniature

Earthwonders

The global marketplace for authentic geological specimens. Connecting passionate collectors with trusted dealers worldwide.

Get on the list for the latest from EarthWonders

Join Our Community

Discover

Browse Market

Browse specimens

Collector Profiles

Learn

Guides

All Policies

Newsletter

Company

About Us

Our Story

Meet the Team

Careers

© 2026 earthwonders