Bytownite Gemstone
It is because composition and occurrence of bytownite is not very common and is hard to find. It is usually found as compact masses and grains in gabbros norites allivalites and anorthosites.
Bytownite gemstones by colour this table shows the variety of hues this gemstone can be found in.
Bytownite gemstone. It also forms from sodic metasomatism of metamorphic rocks. It s said by gem cutters that bytownite is an easy gemstone to cut and yields a brilliant stone. Bytownite a variety of feldspar current inventory.
Typically in the pale yellow to light brown spectrum of color. Bytownite is a calcium rich member of the plagioclase solid solution series of feldspar minerals with composition between anorthite and labradorite. Their occurrence is widespread throughout the world in a great variety of rock types and environments but in most cases transparent crystals are rare.
It is one of rarest gemstones minerals belonging to the plagioclase feldspars family. It is usually defined as having between 70 and 90 an formula. Click on a letter above to view the list of gems.
The mineral bytownite bytownite is a rarer form of feldspar more commonly seen as a facet ed gemstone then as a collectors mineral. Bytownite gemstones by size this table shows distribution of bytownite gemstone sizes that are listed on this site. Click on a photo for more information.
Gem quality bytownite generally varies in color between pale yellow and light brown according to but other sources state that it is colourless grey wite or greenish grey. Check out our bytownite gemstone selection for the very best in unique or custom handmade pieces from our shops. Ca 0 7 0 9 na 0 3 0 1 al al si si 2 o 8.
A rare gemstone bytownite is not a well known gemstone and most probably you may not be familiar with gemstone name. It is usually translucent without a crystal form. Some other forms of feldspar especially the transparent yellow form of orthoclase are faceted and incorrectly labeled as bytownite.
0 gems bytownite is named for bytown now ottawa canada where it was discovered. Gemstone information bytownite 70 90 anorthite is the least common plagioclase. These feldspars are rarely encountered in gem form.
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