COMBINAISON DE SHIGAITE ET DE RHODOCHROSITE, CHAMPS DE MANGANÈSE DU KALAHARI, KURUMAN, AFRIQUE DU SUD (petite vitrine)
80 68 40 121 / CHAMPS DE MANGANÈSE DU KALAHARI, KURUMAN, AFRIQUE DU SUD / 268-08
$650.00
Prix promotionnel
$650.00
Prix régulier
Passer aux informations sur le produit
COMBINAISON DE SHIGAITE ET DE RHODOCHROSITE, CHAMPS DE MANGANÈSE DU KALAHARI, KURUMAN, AFRIQUE DU SUD (petite vitrine)
$650.00
Prix promotionnel
$650.00
Prix régulier
Expédition calculée lors du paiement.
La shigaïte est un minéral de formule NaAl₃(Mn²⁺)₆(SO₄)₂(OH)₁₈·12H₂O, que l'on trouve généralement sous forme de petits cristaux hexagonaux ou de fines couches. Elle a été identifiée pour la première fois en 1985 dans la préfecture de Shiga, au Japon, d'où son nom. Une importante révision de sa formule chimique a eu lieu en 1996, révélant la présence de sodium, un élément jusque-là inconnu.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We want every customer to have a great experience shopping with us. If for any reason you’re not completely satisfied with your purchase, please reach out to our team — we’re here to help and will review every return request with care.
If your item arrives damaged, we kindly ask that you provide a short, continuous video showing the specimen from at least six angles. You can simply hold it in your hands and gently rotate it while filming. Please also include a clear view of the package label in the video so we can assist you as quickly as possible.
For all items reported as damaged or broken, we do require the item to be returned to us before a refund can be processed.
Return shipping costs are initially the responsibility of the customer. However, if your claim is approved after review, we will reimburse your reasonable return postage costs.
Our T&C's or policies prevail in case of a disagreement.
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