Alphabetical list of precious and semiprecious gemstones agate. Chalcedony in the narrow sense typically refers only to lighter and single colored chalcedony typically bluish in color. See the amethyst gemstone page. Alexandrite or chrysoberyl. Aventurine opaque compact quartz chalcedony containing.
Its chemical formula is beal2o4. They have a hardness of 6 to 6 5 on the mohs scale and a vitreous luster. Chalcedony actually includes a wide variety of quartz gemstones including agate chrysoprase bloodstone jasper and carnelian. Ametrine a rare multicolored variety of quartz with purple and yellow highlights essentially a combination of. Chrysoberyl is a gemstone made of beryllium aluminate.
It is one of the best all around crystals for prosperity happiness and well being. It is characterized by rhombohedral. You can have new knowledge and information about it. Please click the link when you see a name of gemstone that you don t know. Cryptocrystalline quartz is usually opaque or translucent in clarity.
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The name comes from the italian word for chance and carrying the stone is supposed to protect a person from bad luck. Among the well known feldspar gemstones are moonstone orthoclase amazonite andesine labradorite and sunstone. Smoky or brown quartz is a commonly occurring quartz mineral that gets it s name from the smoky or cloudy interior. Gemstone name list is good for people who want to know more about gemstones. Amethyst purple variety of quartz and its most popular and valuable gemstone variety.A well polished piece of yellowish smoky quartz may appear like amber while a well cut one may look similar to a brown tourmaline or andalusite. Amazonite moonstone and orthoclase are all potassium feldspars. Agate is cryptocrystalline silica with a chemical formula of sio2. Green aventurine is a quartz based stone colored by mineral inclusions. A well polished piece of yellowish smoky quartz may appear like amber while a well cut one may look similar to a brown tourmaline or andalusite.
Green aventurine is a quartz based stone colored by mineral inclusions. The name comes from the italian word for chance and carrying the stone is supposed to protect a person from bad luck. It is one of the best all around crystals for prosperity happiness and well being. Its chemical formula is beal2o4. Alphabetical list of precious and semiprecious gemstones agate.
