WebIt is a crystalline variety of gypsum. Selenite has a hardness of 1-2 and a specific gravity of 2.3 to 2.4. serpentine Serpentine is a green stone made of silicate; there are two types of serpentine, bowenite and hydrated magnesium silicate. Bowenite is a jade-like stone (green to black) that is sometimes used in jewelry. WebMay 24, 2024 · Gemstone list from A to Z. Below is an alphabetical list of gemstones found in our database. Simply click on a stone and find out detailed information, such as alternate names, pictures and much more. Information for gemstones in general you will find following this link.
Gemstone varieties and trade names - A-Z - minerals
WebGemstone: Crystal System: Density: Hardness: Refractive index: Treatments: Rhodochrosite. hexagonal: 3.60: 3.5-4.5 Alpha Categories: Each of the letters below are links to a hub page for that alphabetic group, as a few readers have told me this would be beneficial. Enjoy seeing what's here! Find what you are looking for in the A to Z of crystal meanings. Each of the pages for the alpha sections below, feature expert articles about … See more For some crystals, minerals or stones I just give you a few paragraphs about a stone, which gives you an idea of how to use it until I write its own page. For other crystals I may be inspired to write an in-depth page … See more If you have information about a particular stone, or would like to share how you have used it, go to my page about crystal storiesand write your … See more how did britain become a diverse society
A - The Crystal Dictionary
WebGemstone: Crystal System: Density: Hardness: Refractive index: Treatments: Labradorite. triclinic: 2.70: 6.5-6.5 WebGemstone: Crystal System: Density: Hardness: Refractive index: Treatments: Pearl. organic: 2.70: 2.4-4.0: 1.530-1.685 WebThe action of the water and other rocks on riverstones polishes them naturally. Riverstones can be used as beads/stones in jewelry. rock. A rock is a aggregation of solid matter, a random conglomerate of minerals. The earth's crust is made of rock. There are three types of rock: igneous, sedimentary, and metamorphic. how did britain get gibraltar