This rock fragment has two veins of callaghanite exposed on it;top and bottom. As well ,ther are tiny balls of hydromagnesite on a number of places on the matrix, as well. There are a few nice, deep blue micro-crystals of callaghanite on the piece.
Note: All prices are in Canadian dollars (CAD). International customers are charged in CAD, exchange rate is calculated automatically by your bank/paypal upon checkout.