Many rocks have crystals embedded on their surfaces, within the rocks or are considered to be crystals. Crystals have flat surfaces which can be either large or small. Crystals with small flat surfaces are said to have "facets." All crystals have a faceted surface, but not all crystals have...
•Cubic chips refer to stones that break across three planes at right angles •Long blocks result in breakage in two planes The Stone’s Color Gemstone color is not the best indicator of the gem hiding in the stone, but sometimes you can use the stone's color to identify it. For ex...
There is a lot of synthetic quartz on the market. We have to take special care to ensure that all the quartz we sell is natural. Gemologists can usually identify the presence of seed crystals in synthetic quartz. The best way for consumers to identify synthetic quartz is by size, color a...
Significant results have been obtained in the identification of metastases and primitive lesions, in perfusion studies, and in the characterization of plaques, crystals, and stones [12,18]. In musculoskeletal imaging, several interesting DECT applications have been developed and have become easily ...
Flint fractures differently from many crystals. When the pieces come apart the tend to look like glass shards, with curves and sharper edges.[12] In addition to looking for natural nodules of flint, be sure to look for flint that has been worked into a shape. You can control the way ...