Black opal is the beautifullest rock
18 Various Kinds of Opals
When most people think of an opal, they might think of a milky-colored stone containing a rainbow of stripes or flecks inside it. What many people don’t know is that they are incredibly diverse in appearance, and are not actually minerals. Opals are a solid, amorphous form of silica, and are classified as “mineraloids”. Like other mineraloids, such as amber, pearl, and obsidian, they lack structural order, or “crystallinity”.
From the top:
- Black Opals
- Cat’s Eye Opals
- Dendritic Opals
- Flamingo Opals
- Peruvian Pink Opals
- Zebra Opals
- Leopard Opals
- Yowah Nut and Koroit Opals (both have the same characteristics - they merely come from two different areas).
- Brown Opals
- Ethiopian Honeycomb Opals
- Green Opals (Serbian, Tanzanian, and Brazilian)
- Peruvian Blue Opals
- Matrix Opals
- Landscape Opals (Andean and Australian)
- Mexican Fire Opals
- Crystal Opals
- Australian Boulder Opals
- Ethiopian Ribbon Opals
(Side note - the image backgrounds are transparent, except for the matrix/landscape picture, which seems hellbent on being an asshat, no matter how many times I try to fix it)
Can we just take a minute here to appreciate opals?
From top left:
- Boulder opal.
- Ethiopian opal.
- Black crystal opal (considered the “Holy grail” of opals).
- Andamooka matrix opal.
- Yowah nut opal.
- Mexican fire opal.
- Mezezo opal.
- White harlequin opal.
- Panel boulder black opal.
I think it’s finished - this bit of #opal #photomicrography. But I’m not finished with #opals!
Back to work. Let’s get some boulder #opal under the scope. Photo credit: @cassloop
Above rough Opal has been in my draw over 10 years,maybe its my lucky rough n i should keep it!


