But here are the six giveaways that will help you identify the more valuable crystal from the everyday glass. "Crystal is heavier than glass because of its mineral content," says Robbins.

Most people know some very basic information about minerals, crystals, and gemstones, but likely wouldn’t be sure about what the real scientific differences are between the three categories.

Because the vacuum chamber contains only carbon and some hydrogen, colorless crystals can be grown ... a top research priority so it can identify and report on the latest developments of these ...

Courtesy a Private Collector and Mona Lee Nesseth, Custom Estate Jewels Spinel, like garnet and diamond, is singly refractive, with the same physical properties in all crystal directions ... Orange ...

Wet analysis for crystal detection and identification was performed within one hour of joint aspiration. In addition, 16 inflammatory synovial effusions obtained from patients with knee arthritis ...