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Museo Universitario di Scienze della terra verified

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Beryl
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Sodalite
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Zolfus
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Imperial Topaz Crystal
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Sicilian Amber
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The Aigle, a chondrite type meteorite
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Garnets
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Renazzo, chondrite type meteorite
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Monte Milone, chondrite type meteorite L
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Diamond
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Axinite
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Magnesite
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Dactyliotheca
Beryl
Sodalite
Zolfus
Imperial Topaz Crystal
Sicilian Amber
The Aigle, a chondrite type meteorite
Garnets
Renazzo, chondrite type meteorite
Monte Milone, chondrite type meteorite L
Diamond
Axinite
Magnesite
Dactyliotheca

Other works on display

Description

The original tag still shows the term mesitite, a disused synonym to indicate magnesite, the famous magnesium carbonate, but still valid to indicate samples with high iron content (for some this term indicates a variety of magnesite rich in iron).The splendid specimen illustrated in the figure comes from the well-known type deposits of Traversella, Ivrea, Piedmont, Italy, and consists of large lenticular crystals of magnesite rich in iron, grouped with crystallized hyaline quartz on white dolomite, with partial patina of ocher limonite and micaceous hematite. One of the prides of the Sapienza Mineralogy Museum is that to possess one of the largest and richest collections in the world of samples extracted in Italy, often coming from mines that are now exhausted or inaccessible; this collection was made possible thanks to large acquisitions and donations that took place, as highlighted in this volume, in the pre-unification era of Italy. This magnesite, purchased in 1852 by Monsignor Lavinio de 'Medici Spada, constitutes for its historical and scientific importance, and for its beauty, a backbone of this extraordinary collection of Italian minerals.


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