If you’re lucky enough to be an October baby, you have two birthstones to choose from – opal and tourmaline. Both are equally gorgeous but they’re radically different to each other and require different levels of care.
Let’s start with opal….
Perhaps one of the most beautiful gemstones around, opal is a hydrous silicate mineral that typically contains 6 – 10% water content. It is an amorphous mineraloid that forms via the deposition of mineral salts in the fissures of rocks. Australia is the world’s leading supply of opal, accounting for approximately 95% of the world’s opals, but the gem is also mined in Mexico, Brazil, Honduras, Ethiopia, the Czech Republic and parts of the U.S.A.