Beitou, Beitou district, Taipei City, Taiwan

© Tsang Ho Yin

Hokutolite crystals (Anglesobarite). Collection M. Kampf No 71-014.

Hokutolite crystals to 4mm from its type locality!

© James K.C.Huang

Mass of crystals 2.3cm tall

© Karl Volkman

1mm crystals on matrix. Photographed by, and in the collection of, Karl Volkman

© Karl Volkman 04/05

Brown crystal of hokutolite or plumboan baryte in matrix. Former John Sinkankas collection with old Ward's Scientific label. Rolf Luetcke specimen and photo.

Brown crystals of hokutolite or plumboan baryte in matrix. Former John Sinkankas collection with old Ward's Scientific label. Rolf Luetcke specimen and photo.

Hokutolite, a Pb-bearing variety of barite with the general formula (Ba,Pb)SO₄, from Beitou District, Taipei City, Taiwan. The specimen displays a typical botryoidal to reniform aggregate composed of densely intergrown microcrystalline surfaces, exhibiting a soft pearly luster and pale beige to light brown coloration. Subtle layered and ...

This specimen represents a rare occurrence of hokutolite, a Pb-bearing variety of baryte formed in the unique geothermal environment of Beitou, Taipei. Hokutolite is historically significant and closely associated with hot spring activity, where barium-rich fluids interact with sulfate-bearing waters, incorporating lead into the crystal ...