Almandine



Almandine, an iron aluminum silicate mineral of the garnet group, is one of the rarer garnets locally. Unanalyzed material in the almandine-pyrope series has been found associated with sillimanite in the central gneiss zone at Sterling Hill. Almandine was also found in one specimen from Franklin, associated with loellingite, magnetite, and fayalite. (Dunn, 1995)

 Location Found: Franklin
     
 Mineral Note:
     
 Formula: Fe32+Al2(SiO4)3
 Essential Elements: Aluminum, Iron, Oxygen, Silicon
 All Elements in Formula: Aluminum, Iron, Oxygen, Silicon
     
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
     
     
 To find out more about this mineral at minDat's website, follow this link   Almandine

     
 References:
Dunn, Pete J. (1995). Franklin and Sterling Hill New Jersey: the world's most magnificent mineral deposits. Franklin, NJ.: The Franklin-Ogdensburg Mineralogical Society. p.357

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.40


     
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