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Allanite-(La)

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CR47190

Allanite-(La)

Rare Mineral

Description Tabs

Description
Locality: 
Nueva Vizcaya Mine, Burguillos del Cerro, Extremadura, Spain
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 6.5 × 4 cm
Largest Crystal: 
0.60cm
Description

A clear and well-developed prismatic crystal of allanite-(La) on matrix with sharp edges and faces. Magnetite octahedrons and small pistachio green epidote accompany it.

Mineral Data
What's on the rock

Allanite-(La)

Formula: 
{CaLa}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05b
Crystal System: 
Monoclinic
Hardness: 
6.0
Streak: 
Brown
Type Locality: 
Buca della Vena Mine, Ponte Stazzemese, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy