Here's a strange fact about the stone you're looking at: it isn't actually made of Scheelite. When this material was first found near Bursa, Turkey back in 2014, the mine owner noticed it glowed under UV light and assumed that meant Scheelite — a calcium tungstate mineral known for that exact glow.
The name stuck, and "Blue Scheelite" has been sold under that label ever since, even though the stone is really a natural blend of blue Dolomite and white Calcite, two completely different minerals that just happen to share Scheelite's fluorescent quirk.
You'll also see it sold as "Lapis Lace Onyx," which is equally misleading since it contains neither lapis nor onyx.
None of that makes the stone any less striking. What you get is soft, wavy blue banding running through a cream-to-white base, occasionally warmed by golden or tan streaks where trace minerals concentrated during formation — a pattern that reads almost like a marbled sky.
There's also a genuinely odd physics quirk here: Calcite and Dolomite are each only about 3 on the Mohs hardness scale on their own, but combined in this formation, the material toughens up to around 5 — harder than either mineral manages alone.
Every cabochon in this lot is cut mix-shape with a flat back, sourced from that one Turkish locality that still supplies most of what's sold under this name worldwide.
Sold in small piece counts rather than bulk carat weight, this lot suits designers and collectors picking a few standout focal stones rather than shops stocking large production runs.
In crystal circles, it's associated with calm, grounded thinking and clearer communication — fitting, given how much explaining this stone's own name usually requires.