Jasper is derived from the Greek for "spotted stone". Jasper is usually considered a chalcedony, but scientists put it in a group by itself because of its grainy structure. Finely grained, dense jasper contains up to twenty percent foreign materials that determine its color, streak and appearance. Uniform jasper is rare; it is usually multicolored, striped, spotted or flamed.
Chrysoprase, a bright apple green translucent chalcedony, is the most valued. Some treasured jasper stones exhibit a picture that appears to be taken from nature and are called "landscapes". Another specialty is bloodstone or blood jasper, also known as "heliotrope"; a dark green chalcedony or jasper with flecks of red. Most jasper is opaque and takes an excellent polish. Jasper is used for ornamental objects, cabochons and stone mosaics. Care must be taken during cutting. Banded jasper tends to separate along the layers.
全体の評価 -> 8
I ordered my gems off this website called GemSelect, they have a good selection and it's easy to navigate. You can also have the gems professionally certified when you buy them, but they do provide certificates of their own.
Good experience with finding a variety of stones. Due to the vast selection, it is important to be able to search, and I had issues with the site not returning matches when I put in a specific size range. I was eventually able to narrow it down by sorting the items by size, but it was slower than if I could have typed it in. I also wish Gem Select would offer lab created stones (fully disclosed, of course!) so I could get some exotic colors more frequently. Overall, I love browsing and will continue to patronize, but this would put the site as my #1 go to.
I have been browsing stones on GemSelect for a few months. They have such a large selection and I found some stones I had never even hear of before visiting GemSelect! I cannot wait to receive my order and show my gems off!