Moderate difficulty suitable for most players
Esoteric Chronicles of Gemstone Rarities
Challenging puzzle for experienced crossword solvers
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Across
- 1. Gem known for wedge-shaped crystals and color range
- 3. Cat’s eye effect bearer with alexandrite’s color shift
- 8. Architectural term lending name to a layered cleavage effect in gems
- 11. California's state gem found in rare alkaline conditions
- 13. Changeable color gem whose name hints at dispersion
- 14. Ancient oceanic rock sometimes containing precious gemstones
- 16. Rare mineral named after coastal erosive patterns
Down
- 2. Element integral to zircons, radiometric dating’s cornerstone
- 4. Pink to lilac spodumene variety named after a famed gemologist
- 5. Deep blue-green stone named for a Madagascar explorer
- 6. Crystal form where one mineral replaces another retaining shape
- 7. One of Earth's rarest silicate minerals with a Serendip namesake
- 9. Often mistaken ruby twin with brilliant hardness
- 10. High-temperature aluminum-magnesium silicate unusual in gemology
- 12. Pleochroic stone named after a Spanish region
- 15. Dark silicate mineral named after a Roman sea god
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