At least you're on the right track...clear and opaques go hand in hand.An opaque 1 or so carat sapphire from my most recent journey. A proof of concept for my hobby at least. View attachment 8742
No expert.... Petrified cloud ? Looks similar to the quartz found around Echunga SA.I found this piece of quartz recently. It has a nice grey hue.View attachment 10501
View attachment 10502
Also a great stone!
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