Orthoclase from St Gotthard pass road, Uri, Switzerland - image 1

Orthoclase from St Gotthard pass road, Uri, Switzerland

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This long, elongated, complex aggregate of twinned Orthoclase feldspar crystals is a classic from the St Gotthard area like those written about in mineralogical texts from the earliest years of the 19th century. However, what is most fascinating is the accompaniment of beautiful old handwritten labels. These reveal a more precise locality of "Monte Stella" which was mentioned in Robert Jameson's early mineralogical book but about which all record appears lost. Indeed, in recent years, collectors have talked online of this mysterious place near St. Gotthard, but without really being able to pin it down properly. Judging by the style of these old labels they date to at least the middle of the 19th century, making this a wonderful historic piece. At 11 cm in length, and in fine, original condition, it is a wonderful example of historic European mineralogy. It is from the superb systematic collection assembled by brothers Martin and Michael Günther (1951-2007 & 1956-2021).

Product details

SpeciesOrthoclase
SizeCabinet
Dimensions4.5 x 11.0 x 3.5 cm
Added on05/07/2025
Current owner
Unknown Owner
Acquired
Jul 2026
Price paid
$750.00
Previous owners
DateCollectorAcquisition price
—Crystal ClassicsNot disclosed

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Orthoclase
Mineral guide
Learn about Orthoclase
classic potassium feldspar with colors from colorless to pink; famed for Carlsbad, Baveno and Manebach twins and Alpine adularia in clefts.
Orthoclase
Regional guide
Orthoclase from St Gotthard pass road
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Locality guide
St Gotthard pass road
St Gotthard pass road, Switzerland — Alpine fissure locality yielding quartz, smoky quartz, and pink fluorite; prized for glassy octahedra and cleft specimens.