This specimen is manganocalcite from Peru. The matrix which the crystals are sitting on may be quartz and/or rhodocrosite.
The first image was taken under long wave ultraviolet light. The manganocalcite fluoresces a pink with a touch of orange.
The image below is under short wave ultraviolet light and the manganocalcite fluoresces a reddish pink.
To view Peruvian manganocalcite material under normal lighting conditions, return to the fluorescent section and click on the page link: "To view specimen material from Peru."
Manganocalcite 
Quantity in Basket: None
Code: PMC-100
Price: $100.00
Shipping Weight: 0.96 pounds
Location: Peru
Minerals: Manganocalcite
Size: 2" x 4-1/8" x 2-3/4"