Opal gemstones are among the most visually fascinating gems in the world, famous for their flashes of rainbow color and the fact that every individual stone can look completely different. Unlike many gemstones, opal does not have a crystalline structure, and its unusual appearance comes from the way tiny silica particles interact with light. Here are ten interesting facts about opal stones followed by a fun trivia quiz. How many can you get right?? Ten Opal Gemstone Facts 1. Opal is made mainly from silica and water Opal is a form of hydrated silica and unlike quartz, which has a well-organised crystalline structure, opal is amorphous, meaning it does not…

The October symbols and zodiac signs are: Official Birthstones: Opal & Tourmaline Alternative birthstone: Pink Tourmaline Birthstone color: Multi–color, White or Pink Birth flowers: Marigold and Cosmos Birth trees: Ivy and Reed Zodiac star sign: Libra: (Sep 24 - Oct 23) Zodiac star sign: Scorpio (Oct 24 - Nov 22) Additional symbols of October include: Birds: Migrating geese Animals: Autumn deer rut Insects: Monarch butterfly migration Download October Birthday Symbols Chart Annual List of Birthday Symbols and Zodiac Signs