This mineral is found in contact metamorphic deposits in limestones. It has the formula (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10
About 1" diameter.
Sold individually. Size, shape and color vary.
If you would like to pick this item up at our store front, please select "pick up" during checkout.
If your delicate specimen is over 70lbs we will refer you to our local Crating company for safer freight shipping!
*At customer expense.