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Ferro-fluoro-edenite

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SMM868347

Ferro-fluoro-edenite

Analyzed
New Mineral type

Description Tabs

Description
Locality: 
La Fossa Crater, Vulcano Island, Messina Province, Sicily, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.3 × 0.5 cm
Description

The new mineral ferro-fluoro-edenite, (IMA 2020-058) , (NaCa2Fe2 + 5 (Si7Al) O22F2) was found as prismatic crystals up to 1.00 mm within cavities in the ejected materials of the 1873 eruption at La Fossa crater. Associated minerals are quartz, magnetite and vonsenite. The crystals are dark brown to black, transparent or semi-transparent with a vitreous luster.
Campostrini, I., Demartin, F., Vignola, P., Pezzotta, F. (2021): Ferro-fluoro-edenite, a new amphibole end-member from Vulcano Island (Sicily, Italy). Canadian Mineralogist, 59, (in press).

In this specimen:

Several prismatic crystals of ferro-fluoro-edenite, tufts of bronze or dark bundles of vonsenite are visible and in addition to quartz, some very small black crystals of magnetite. Quite rich.

The sample was analyzed.

Boxed with Label
Mineral Data
What's on the rock

Ferro-fluoro-edenite

Formula: 
NaCa2Fe2+5(AlSi7O22)F2
Crystal System: 
Monoclinic
Type Locality: 
La Fossa Crater, Vulcano Island, Messina Province, Sicily, Italy

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120
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Start 22 Sep 18:00
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Postage Area Price
Italy up to 100 g. €.8.00 - up to 250 g. €.9.00
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Europe up to 100 g. €.11.00 - up to 250 €.13.00
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America, Africa, Asia, up to 100g. €.13.00 up to 250g. €.17.00
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Australia,N.Zeland,Oceania,up to100 g.€.14.00 up to 250g.€.18.00
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