Here is a Rhodochrosite crystal from the Sweet Home mine of Alma, Colorado. It is a very nice specimen with some transparency. From the Charles Ruggles collection. 

Name: Rhodochrosite

Locality: Sweet Home Mine, Alma, Colorado

Size: Entire specimen measures 5 x 5 x 4 millimeters

Mass: 3.0 carats

Since minerals are difficult to judge by pictures, I do have a return policy! 

Feel free to ask questions!

-Happy bidding!

Will combine shipping.
Returns accepted within 14 days of arrival for refund of purchase price but no refunded shipping. Returns have to be sent also via priority mail with delivery confirmation and insurance.