Blue Opal crystal tumblestones.
The African crystals have varying shades of blue, mainly pale, but some have natural brown/black areas.
The Mexican gemstones although called blue, the colouring is purplish blue. The crystal is also known as Morado Opal or purple Opal with "Morado" being the Spanish word for purple. The purple in these stones is Fluorite.
This stone soothes the emotions and enhances communication.
See more tumblestones here
Size: 2 - 2.8 cm approx measured at the largest points
Weight: 3 - 10 grams approx
Country of origin: Africa
Size: 1.8 - 2.3 cm approx measured at the largest points
Weight: 3 - 6 grams approx
Country of origin: Mexico