There are only a few minerals that fade at all - Rose Quartz, Orange Calcite and to some extent Amethyst - for example. So far as I know it is natural light that does it but even if the artifical light does it ours won't be on enough to do any damage.
You may have heard of Project 365 in whic people post a photograph every day for a year. This is my version – the idea is to post a photo taken every day but I am realistic enough to know that there will be a day or two missed during the year.
Nice collection.
ReplyDeleteSo it's only natural light that causes them to fade?
ReplyDeleteThere are only a few minerals that fade at all - Rose Quartz, Orange Calcite and to some extent Amethyst - for example. So far as I know it is natural light that does it but even if the artifical light does it ours won't be on enough to do any damage.
ReplyDelete