Andorite crystals (Top!) from the Itos Mine, Ouro, Bolivia – miniature specimen as unique piece
Brilliant silvery-metallic Andorite crystals are prominently displayed on this specimen in excellent form. The crystal faces are clearly visible, showing prismatic striations and a distinctive metallic luster typical of this rare sulfosalt mineral. The piece originates from the Itos Mine near Ouro, one of Bolivia’s classic localities for high-quality andorite specimens.
Andorite is a complex silver-antimony sulfosalt and ranks among the rarer ore minerals of this element combination. Due to its attractive crystal form and rarity, it is highly sought after by collectors of systematic and sulfosalt-rich collections.
Geology & Origin:
The Itos Mine is located in one of South America’s most important polymetallic mining districts. Andorite forms in hydrothermal veins alongside tin and silver ores, commonly associated with cassiterite, boulangerite, and sphalerite. Specimens of this quality are uncommon and highlight the geochemical complexity of this renowned locality.
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)
embedded 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
