Home > American Minerals – August 22 > MS1411 Tunellite
Tunellite
- Kramer deposit
- Boron
- Kern County
- California
- U.S.A.
- 5.5 by 5.0 by 4.3 cm – Small cabinet specimen (under 10 cm)
Tunellite is a rare hydrated strontium borate. The mineral is stable in humid and dry environments and not very water soluble. Erd et al. (1961) named tunellite in honor of George Tunell (1900-1996), former professor of mineralogy at UCLA. Tunellite has monoclinic symmetry and perfect cleavage on {001}; the faces of which display pearly luster. This is a large example, showing minor incipient cleavage. This material comes from 1998, when mine geologist Jo Siefke found these crystals.
This is a tight crystal cluster, showing excellent luster. One edge shows minor contacting, but this is a fine complete crystal cluster, free of cleaved surfaces. More equant than most examples. Excellent!
Price: $300
Item code: MS1411
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