Home > Laskowski Ⅴ – July 20 > MS1898 Harmotome


Harmotome is a hydrous barium aluminosilicate, specifically a member of the zeolite group (Coombs et al., 1997). French mineralogist Rene Haüy named the mineral in his 1801 Traité de Minéralogie. The mineral name combines the Greek harmos and tome, for joint and cutting respectively, in recognition of the divided appearance of its twinned crystals.

Harmotome forms crystals to 9 mm on matrix. There is some chipping to some of the crystals; this is a historic specimen; its original label gives the locality as Outokumpu. We believe it comes from this nearby locality. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona.

Price: $200

Item code: MS1898

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