Sentit | A milky or greyish translucent to transparent quartz. |
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Específic | cornalina | A translucent red or orange variety of chalcedony |
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crisoprasa, crisoprasi, crisopras | A green variety of chalcedony valued as a gemstone |
heliotropi | green chalcedony with red spots that resemble blood |
plasma | A green slightly translucent variety of chalcedony used as a gemstone |
sard | A deep orange-red variety of chalcedony |
àgata | An impure form of quartz consisting of banded chalcedony |
ònix | A chalcedony with alternating black and white bands |
General | gemma transparent | A gemstone having the property of transmitting light without serious diffusion |
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quars | A hard glossy mineral consisting of silicon dioxide in crystal form |
Anglès | chalcedony, calcedony |
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Espanyol | calcedonia |
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