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Species / Silicates / #0106

Allanite-(La)

Silicates monoclinic #0106

Allanite-(La) is a mineral species described as epidote supergroup, sorosilicate mineral. It is classified under the Nickel-Strunz scheme and its reference data is listed below.

Formula CaLa(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH)
Strunz code 9.BG.05b
Class Silicates
Crystal system monoclinic
Type locality Buca della Vena mine
Named after allanite group
Streak
No specimen image

Composition

O
35.73%
La
23.87%
Si
14.48%
Fe
9.59%
Al
9.27%
Ca
6.89%
H
0.17%

Molar mass 582.042 g/mol

Physical

Mohs
Density
g/cm³