Aquamarine- (Beyrl)- composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2(SiO3)6. ....The pale blue color of aquamarine is attributed to Fe2+ , hardness of 7.5–8, Crystal system Hexagonal
Handmade Faceted Polished Loose Semiprecious Stone Natural London Blue Topaz Round 5.77 Ct. Jewelry Supplies
Fluorite on Quartz covered matrix, From Riemvasmaak, Kakamas District, Northern Cape Province, South Africa. Measures 4.1 cm by 5.4 cm by 3.8 cm in total size.
http://rubies.work/0199-ruby-rings/ Tanzania Confetti Sunstone Faceted Gem Stone by FenderMinerals Tanzania Faceted "emerald cut" Rectangle Gem Stone with hematite inclusions Very bright, lots of flash Gem quality Labradorite Feldspar, 100% natural, not enhanced Weight: 2.5 carats