Birthstone for March: 30% Off Aquamarine. Code: march30off

Boulder Wood Fossil Opal Pair 10.45 ct Australia

MdMaya Gems

Australian Boulder Wood Fossil Opal PairCabochon Oval Cut. 10.45 ct. 

These beauties have a long history. Maybe 100 million years, in their day they were a tree, roots or who knows, part of vegetation of the great Australia. Whit the passage of time this wood became fossilized and there was a replacement of part of it by precious opal.

Today they are an amazing pair of untreated boulder opals that shows a beautiful pattern on both sides withs its neon blue and green, leaning out from all sides. This pair has double side and are perfect for making that extra special earrings. Gemstones 100% Ethical and Natural.

WEIGHT 1: 5.48 ct
WEIGHT 2: 4.97 ct
SIZE 1: 16.17 * 8.99 * 4.31 mm
SIZE 2: 15.88 * 8.86 * 4.37
SHAPE : Cab. Oval
TREATMENT : Untreated
HARDNESS : 5.5 - 6.5

The Opal is associated with good luck, it is the birthstone for October and the gem fo 14th wedding anniversaries.

The name for the opal comes from the Sanskrit word "Upala", meaning precious stone or stone par excellence.

The Greek word "opallios" means "to see a change of colors".

The opal is an amorphous substance that belongs to the silica group. It is formed by a series of spherical microscopic structures of various sizes, which diffract light to show a beautiful play of colors.

We took several photos:

Our shipping Options.  


MdMaya Gems uses the following clarity scale when grading gemstones.


  • Type 1: Stones that are often inclusion free
  • Type 2: Stones that are usually included 
  • Type 3: Stones that are almost always included

       Type 3: Noticeable inclusions apparent to the unaided eye.
       Type 2: Noticeable inclusions apparent to the unaided eye.
       Type 3: Obvious inclusions very apparent to the unaided eye.



