This is a lot of 6 calibrated 10 mm x 8 mm oval sodalitie cabochons.
Sodalite is a natural gemstone that is usually a rich, deep blue with white streaks.
Very pretty and very affordable.
Sodalite measures a 5.5 to 6 on the Moh's scale of hardness.
As with all natural cabochons, no two cabochons will be exactly alike.