| Brilliant blue variety of a rare mineral, used as a gemstone (5,6) |
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| Stone plaza is rocky you said, piercing bad back |
The Telegraph Toughie |
24 Nov 2023 |
| Stone plaza is rocky you said, piercing bad back (5,6) |
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| Stone is left in Bolivian city university -- large one |
The Telegraph Cryptic |
29 Mar 2021 |
| Source for Vermeer's blues |
Newsday |
13 Jun 2020 |
| Bright blue gem |
Premier Sunday |
19 May 2019 |
| Deep blue semi-precious stone, the original source of ultramarine pigment |
The Times Specialist Sunday |
07 Oct 2018 |
| *Deep blue gemstone |
LA Times Daily |
23 May 2017 |
| *Deep blue gemstone |
The Washington Post |
23 May 2017 |
| *Deep blue gemstone |
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| Sky blue |
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| Sky blue |
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| Rich blue stone |
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| Blue semiprecious stone |
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| Deep-blue gem |
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| Deep-blue gem |
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| Blue gemstone |
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