Specimen #790

Name: Franklinite, Willemite, Calcite

Type: Micromount

Locality: Sterling Hill Mine, Ogdensburg, New Jersey, USA

Favorite? N

Fluorescent? N

Size:

Weight:

Acquired: 2008-09-27

Source: Simkev Micromounts

Label: N

Comment: Splendent black crystals - usually modified octahedra with Willemite.

Minerals: Calcite (CaCO₃) Franklinite ((Zn,Mn⁺⁺,Fe⁺⁺)(Fe⁺⁺⁺,Mn⁺⁺⁺)₂O₄) Willemite (Zn₂SiO₄)

There are 3 pictures on file

M00790-01.jpg:

Magnification: 7.5X, Field of View: 18 x 12 mm

M00790-02.jpg:

Magnification: 25X, Field of View: 3.7 x 2.5 mm

M00790-03.jpg:

Magnification: 70X, Field of View: 1.9 x 1.3 mm