Gemstones, including rubies, emeralds, and sapphires, can be sold for cash, much the same as diamonds and other jewelry. However, more often than not, those stones have very little resale value, ...

TUCSON (KVOA) - The Pueblo Gem and Mineral Show is officially open to the public and there are some rare crystals on display this year. Three massive amethyst clusters are making their debut at the ...

Blechnum orientale fern, naturally produces rare-earth element crystals. (Image: Vu Pham Van) Scientists have discovered a fern that forms rare-earth crystals. The plant, Blechnum orientale, produces ...

Rare-earth calcium oxyborate crystals have emerged as promising materials in the realm of piezoelectric applications due to their robust performance under harsh conditions. The intrinsic properties of ...