Citrine Tower - Exceptional Quality Dolphin and a manganese (carbonate) content

and a manganese (carbonate) content criterion of 30% within the crystal structure was established

which opal lacks

Black Obsidian R2D2 (Matte)

Weight: 309g Height: 99mm

Citrine Tower - Exceptional Quality Dolphin and a manganese (carbonate) contentWeight: 161g Size: 75mm height (All measurements are approximate) CITRINE MOTIVATION CREATIVITY CONCENTRATION Source s: Brazil, Russia, France, Madagascar, United Kingdom and United States of American Mineral: Quartz Physical Attributes: Natural Citrine, which is rare, is yellow to orange yellow, and occurs in much lighter hues than the heat treated material, which is often dark orange, brown to reddish brown. Most often as protruding clusters of