Goyazite and Quartz crystals from the Lengenbach Mine, Binntal, Valais, Switzerland, Valentin Sicher Sr. collection– miniature specimen as unique piece
This miniature specimen from the famous Lengenbach quarry in the Binn Valley features a combination of whitish Quartz and embedded Goyazite, appearing as small beige aggregates on the matrix. Its fine-grained texture and the typical mineral associations of the sulfide-rich Lengenbach paragenesis give the piece an authentic and characteristic appearance. Originating from the collection of Valentin Sicher Sr., it represents the classic mineral diversity of this unique locality.
Geology & Origin
The Lengenbach quarry in Switzerland’s Binn Valley is world-renowned for its extraordinary assemblage of rare arsenic minerals formed within a highly complex dolomite vein system. Hydrothermal processes created more than 160 mineral species, many of them exclusive to this locality. Goyazite typically occurs in small aggregates at Lengenbach, often associated with Quartz, Dolomite or sulfide minerals. This specimen reflects the characteristic paragenesis of the site and is a fine example of the delicate mineralogical development found in this alpine deposit.
This table is for general information and orientation, although the sizes of the stones may vary. In addition, this specification is handled differently from region to region.
Sizes
Description
approx. Sizes in mm/cm
approx. Sizes in INCH
Capsule
Capsule
0.1–0.5 mm in a transparent hard capsule (approx. 1 cm)
capsule contents 0.1–0.5 mm
capsule contents 0.004–0.02 in
TN/mm
Micromount (TN = Thumbnail)
everything fitting in a TN Perky box or a MM box of approx. 1 in
approx. 0.5–2.5 cm
max. 1 in
Min
Miniature specimen
will not fit a TN or MM box anymore
approx. 2.5–5 cm
approx. 0.2–1.0 in
Scab
small cabinet specimen
approx. one-third to half a hand size
approx. 5–9 cm
approx. 1.0–2.0 in
Cab
cabinet specimen
full hand size
approx. 9–15 cm
approx. 2.0–3.5 in
large Cab
large cabinet specimen
approx. two hand sizes
approx. 15–30 cm
approx. 3.5–6.0 in
very large Cab
very large cabinet specimen
everything larger, no upper limit
Abbreviations commonly used in mineralogy.
Abbreviation
Meaning
xl
single crystal, possible with matrix
xls
noticeable crystals
(xl)
embedded or damaged
(xls)
embeddet or damaged
MASS
massive and/or amorphous pieces
TYP
type locality of the original description
SWUV
shortwave-UV-reaction
UV
ultraviolet reaction
SC
self-collected
U
unique (single unique piece)
Usage Instructions
This product is ideal as a collector's item, decorative element, teaching material, or for scientific and exhibition purposes.
Legal Notices
Safety
We accept no liability for damages resulting from improper and/or non-recommended use. Please carefully assess the suitability of the product before any alternative use.
Responsible Provider
Mikon Mineralienkontor GmbH Steinslieth 11 D-37130 Gleichen OT Klein Lengden
