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Magnesite

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PDM888578

Magnesite

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Description
Locality: 
Azcárate Quarry, Eugui, Esteríbar, Navarre, Spain
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 3.2 × 2.6 cm
Largest Crystal: 
1.90cm
Weight: 
17.00gr
Description

Attractive flower-like aggregate of lustrous lenticular white magnesite crystals. The specimen is from the Azkárate quarry (Eugui), that was exploited for magnesite, but it is known for the dolomite crystals. The extracted magnesite “ore” was mainly massive or blocky. However, euhedral well-crystalized specimens such as this one were only occasionally extracted and recovered, so they are very rare in mineral collections, especially in this excellent quality. The Azkárate Quarry is now closed and restored.

Found by Francisco Maello in 1992.

Mineral Data
What's on the rock

Magnesite

Formula: 
MgCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White
Type Locality: 
Magnisía Prefecture (Magnesia), Thessalia Department (Thessaly), Greece

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