Opal. Opal's iridescence is known as opalescence. The nature of opals crystal structure is unique in that it is spherical. The spheres cannot align in an orderly structure and refract light in many ways, resulting in the multitude of colors and the change of appearance as you move the angle from which you view the opal. Opalization is a form of petrafaction fossilization. I would guess that the pieces are coated partially to prevent them from coming apart, for the spherical crystal structure makes for weak bonds. Common opal is tougher and less opalescent.
Thank you for all these videos. They are wonderous and relaxing. Always enjoy the random banter with Sprite.
Thanks for everything you’ve done for us, Dave. I’ve learned so much watching your channel. It helped to change my life and I will always be grateful.
We love everything you do here Dave. Thank you thank you❤
Hey Dave,
You keep finding the best material and the best vendors.
You deserve a million viewers, keep at it man!
The baryte with pyrite tango dancers are green and white asparagus. 😂
Hello, I am interested in purchasing the ammolite. Thank you, Deborah
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What mineral makes them iridescent like that Dave?
not sure
Opal. Opal's iridescence is known as opalescence. The nature of opals crystal structure is unique in that it is spherical. The spheres cannot align in an orderly structure and refract light in many ways, resulting in the multitude of colors and the change of appearance as you move the angle from which you view the opal. Opalization is a form of petrafaction fossilization. I would guess that the pieces are coated partially to prevent them from coming apart, for the spherical crystal structure makes for weak bonds. Common opal is tougher and less opalescent.
Mich würden die da nicht mehr rauskriegen 😂😂😂🫠