mail_outline sales@mediastorehouse.com
Citrine and sapphireFine and poor examples of gem cutting and polishing. A superbly cut citrine (a yellow variety of quartz) and a poorly cut sapphire (blue), a variety of the mineral Corundum (aluminium oxide)
Fluorescent groupA group including amber, ruby, ivory, fluorite and opal photographed in ultra violet light. See 179 for the same group in white light
