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the dabs of color in this cab appear to be smattered across the surface
dusty pink background
freeform teardrop shape to accentuate and follow the color bands as much as possible
They are three-billion-year-old mats of cyanobacteria (blue-green algae)
this stuff has a reputation for being a bit vuggy and this slab is no exception
Blue Dumortierite Slab americandendrites the dabs of color inDumortierite can sometimes be mistaken for sodalite and lapis lazuli; however, it's harder than both of those materials and therefore more durable for jewelry; it's also likely to take a higher polish. It displays a fantastically rich, denim blue color a great way to get such a vibrant color in a relatively hard material (MOHS 7 8). This is a rough, unpolished slab. Please observe images closely for flaws, as some degree of that is normal. Pictured
US$ 29.90
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US$ 55.29
