KRENNERIT, CRESSON MINE, CRIPPLE CREEK, COLORADO, USA (small cabinet)
52 35 40 99 / Cresson Mine, Cripple Creek, Colorado, USA / 586-08
$320.00
Angebotspreis
$320.00
Normaler Preis
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KRENNERIT, CRESSON MINE, CRIPPLE CREEK, COLORADO, USA (small cabinet)
$320.00
Angebotspreis
$320.00
Normaler Preis
Versandkosten werden beim Checkout berechnet.
Krennerit ist ein orthorhombisches Goldtellurid-Mineral, das unterschiedliche Mengen an Silber in seiner Struktur enthalten kann. Seine Formel ist AuTe2, obwohl Exemplare gefunden wurden, bei denen bis zu 24 % des Goldes durch Silber ersetzt wurden ([Au0.77Ag0.24]Te2). Im Gegensatz zu den chemisch ähnlichen Gold-Silber-Telluriden Calaverit und Sylvanit, die monoklin sind, ist Krennerit orthorhombisch.
Seine Farbe reicht von silbrig-weiß bis messinggelb. Krennerit hat eine spezifische Dichte von 8,62 und eine Härte von 2,5. Es wird typischerweise in Hochtemperatur-Hydrothermalumgebungen gefunden.
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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