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Erythrite

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RSG1162511

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Description
Locality: 
Cape Calamita Mine, Capoliveri, Elba, Livorno Province, Tuscany, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 2.5 × 1.5 cm
Description

Magnificent botryoidal to spheroidal aggregates of erythrite, displaying intense raspberry-pink to purplish-rose hues, coating an oxidized matrix rich in limonite and cobalt-bearing host rock from the famous Capo Calamita mining district, Elba Island, Tuscany. The rounded aggregates are composed of countless radiating acicular microcrystals, showing a silky to slightly vitreous luster and the characteristic velvety surface typical of well-crystallized hydrated cobalt arsenates.

Erythrite (Co₃(AsO₄)₂·8H₂O) is a secondary supergene mineral formed by the oxidation of primary cobalt sulfides within polymetallic veins. At Capo Calamita, it commonly occurs in association with pharmacosiderite, scorodite, limonite, and occasionally roselite. Specimens from this classic Italian locality are world-renowned for the depth of their color, the perfection of their spherical aggregates, and the striking contrast with the ochre-brown iron oxide matrix.

In a box 2.8x2.8cm, labelled

FoV : 2.8mm

Mineral Data
What's on the rock

Erythrite

Formula: 
Co3(AsO4)2·8H2O
Strunz: 
8.CE.40
Hardness: 
1.5 - 2.5
Type Locality: 
Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany

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€6
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€8
MONDE / WORLD
€10
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Shipping about 4 to 7 working days (I'am in général waiting for the next auction to end in case you want to bid on the next one)

All the items will be sent in padded envelope so the shipping costs will be reduced and the item protected as good as possible. However if you order several items, a parcel will be better.

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Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

No refund on the items

When you win an auction, please pay within the end of the month of the auction. If you have not paid by the end of this selling period the item will be relisted or a litigation will be open.

If you have any questions or enquiries, we will be happy to answer to them

 

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