Specimen #495

Name: Tincalconite after Borax

Type: Mineral

Locality: Boron, Kramer District, Kern Co., California, USA

Favorite? N

Fluorescent? N

Size: 16.6 x 15.8 x 3.2 cm.

Weight: 264

Acquired: 2007-09-11

Source: Auction: Dan Weinrich

Label: Y

Comment: (Weight with stand). A delicate 16.6 x 15.8 x 3.2 cm matrix plate, the top completely covered by large well defined crystals of borax 27 mm in size. For the most part these crystals are undamaged; there is some chipping and breakage present though. The crystals are altered to a solid white tincalconite. Nice well crystallized cabinet piece!

Minerals: Borax (Na2B4O5(OH)4 8(H2O)) Tincalconite (Na6[B4O5(OH)4]3 8(H2O))

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