![rhodonite from Moro da Mina Lafaiete in Brazil pear cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/rhodonite-poire-moro-da-mina-mineconseheiro-lafaiete-minas-gerais-bresil77.png)
Aries
Je vous emmène à travers mes vidéos découvrir mon expérience acquise depuis plus de 30 ans a silloner le globe entier à la recherche de pierres précieuses, de rencontre mémorables mais aussi de difficulté parfois …
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![rhodonite from Moro da Mina Lafaiete in Brazil pear cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/rhodonite-poire-moro-da-mina-mineconseheiro-lafaiete-minas-gerais-bresil77.png)
![emerald cut rhodocrosite from Colorado, United States](https://www.patrickvoillot.com/wp-content/uploads/2021/03/rhodochrosite-taille-emeraude-colorado-etats-unis78.png)
rhodochrosite
The gem variety, which is only marketed since 1950, yet named dialogite or “Inca Rose”, saw its name derived from the Greek “rhodon” for rose. In fact, the term dialogite was reserved to rhombohedral crystals. It is of a pinkish red to yellowish color, with
![prehnite crystals from India](https://www.patrickvoillot.com/wp-content/uploads/2021/03/prehnite-cristaux-inde89.png)
![moonstone from Sri Lanka cut in cabochon](https://www.patrickvoillot.com/wp-content/uploads/2021/03/pierre-de-lune-cabochon-sri-lanka94.png)
moonstone
The moonstone is composed of alkaline feldspar, mainly potassium in other words orthoclase, in its variety “adularia”. This is actually a microperthite resulting from a microscopic phase separation of platelets from a sodium feldspar, the albite, in the orthoclase during the cooling of the mixture
![phenacite from Burma cushion cut](https://www.patrickvoillot.com/wp-content/uploads/2021/03/phenacite-birmanie-coussin-photo97.png)
![silver color pearl from Lombok in Indonesia](https://www.patrickvoillot.com/wp-content/uploads/2021/03/perle-silver-culture-lombok-indonesie100.png)