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Cummingtonite

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RSG1163604

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Description
Locality: 
I Mondei, Montescheno, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 2.5 × 2.5 cm
Description

Outstanding micromount of cummingtonite from the Ca’ Mondei locality, Italy, displaying a remarkable assemblage of elongated prismatic to fibrous crystals, ranging in color from golden-brown to olive-brown, arranged in parallel bundles and well-defined massive aggregates within a dark ferromagnesian matrix.

The crystals show very sharp longitudinal striations, partial translucency, and a silky to vitreous luster, with well-developed terminations. Fine iron-oxide staining highlights growth features and enhances the contrast with the surrounding matrix, producing a highly dynamic and visually striking composition under macro and micro-photographic observation.

Cummingtonite is a magnesium–iron amphibole typical of amphibolite-facies metamorphic environments.

In a box 2.8x2.8cm, labelled

FoV : 3.00mm

Mineral Data
What's on the rock

Cummingtonite

Formula: 
☐{Mg2}{Mg5}(Si8O22)(OH)2
Strunz: 
9.DE.05
Crystal System: 
Monoclinic
Hardness: 
5.0 - 6.0
Streak: 
nd

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Shipping Information

Postage Area Price
FRANCE
€6
EUROPE
€8
MONDE / WORLD
€10
View sellers shipping policy

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.

The shipping price includes the price of the padded envelope.

We keep attention to all of our package and try to deliver the parcel as quick as possible to the costumer.
 

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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