BOLTWOODITE (petit meuble), GOANKONTIS NAMIBIE, NON DISPONIBLE À LA VENTE HORS D'AUSTRALIE
85 60 40 233 / GOANKONTIS NAMIBIE / 2017-17
$365.00
Prix promotionnel
$365.00
Prix régulier
Passer aux informations sur le produit
BOLTWOODITE (petit meuble), GOANKONTIS NAMIBIE, NON DISPONIBLE À LA VENTE HORS D'AUSTRALIE
$365.00
Prix promotionnel
$365.00
Prix régulier
Expédition calculée lors du paiement.
La boltwoodite est un silicate d'uracile hydraté de formule (K<sub>0,56</sub>Na<sub>0,42</sub>)[(UO<sub>2</sub>)(SiO<sub>3</sub>OH)]·1,5(H<sub>2</sub>O). Sa structure cristalline diffère de celle de la boltwoodite sodique : elle est orthorhombique, contrairement à la structure monoclinique de cette dernière. Ce minéral se forme par oxydation et altération de minerais d'uracile primaires et se présente généralement sous forme de croûte jaunâtre sur certains grès uranifères, caractérisée par un éclat soyeux ou vitreux.
NON DISPONIBLE À LA VENTE EN DEHORS DE L'AUSTRALIE
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