An opal is a very precious gemstone containing silica and water. The amount of water varies by every type of opal. Because of that, this gemstone has no crystal structure. On the Mohs scale, this gemstone has hardness between 5 and 6.5.
On this page, it's likely to also find dendrite opal. Dendrite opal is a white opal without the shiny colorful characteristics. Dendrites are fern-like inclusions of iron, manganese, or other metal oxides that form a beautiful pattern.
On a spiritual level opals strand for joy, optimism, zest for life, spontaneity, originality, creativity. It stimulates interest in art and an appreciation for beautiful things. Read more about this gemstone on our gemstone page!
Opal belongs to the zodiac signs Pisces, Cancer, Scorpio and Sagittarius. Read more about which gemstones belong to zodiac signs here.