Bytownite is a rare variety of feldspar named for deposits found in Bytown, Canada (now Ottawa). Some forms of this gem distinctly resemble the gemstone andalusite, another member of the feldspar group.
- Optical Properties
- Characteristic Physical Properties
- Chemistry & Crystallography
Countries of Origin
Angola; Portugal; Armenia; Greece; Austria; Mongolia; El Salvador; Korea (the Republic of); Morocco; Unknown; Algeria; Argentina; Iran (Islamic Republic of); United States of America (the); Hungary; Japan; Ukraine; India; New Zealand; Canada; Belgium; Finland; Italy; South Africa; Antarctica; Ethiopia; Germany; Tanzania, United Republic Of; Czechia; Madagascar; Costa Rica; Saudi Arabia; Sweden; China; Russian Federation (the); Poland; Slovakia; France; Lithuania; Nigeria; Kyrgyzstan; United Kingdom of Great Britain and Northern Ireland (the); Kenya; Switzerland; Spain; Cuba; Bangladesh; Burkina Faso; Mauritania; Norway; Mexico; Australia; Greenland; Indonesia