Ferro-actinolite crystals; Binntal, Switzerland; miniature specimen; unique piece

Ferro-actinolite crystals from Binntal – miniature specimen as a unique piece

This miniature specimen features elongated, partly parallel crystals in yellowish to orange-brown tones on a dark gray to greenish-black matrix. Light, silvery-looking surfaces add further highlights and make the crystals stand out against the darker background. The specimen measures approximately 4.5 cm.

Geology & Origin

The Binntal valley in the Swiss canton of Valais is known for its wide variety of minerals and rocks. The area includes gneisses, dolomite marbles, Bündner slate, amphibolites, and serpentinites, which were metamorphosed during Alpine mountain building. Actinolite is also documented in the Binntal; Ferro-actinolite is the iron-rich member of the actinolite–ferro-actinolite series.

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

Email: info@mikon-online.com

More Information

More Information
shipment-weight, NOT netto weight (kg)	0.100000