Pyrosmalite-(Fe) crystals; Nordmark, Sweden; KS; unique piece

Pyrosmalite-(Fe) crystals from Nordmark, Sweden – miniature specimen as a unique piece

Numerous light brown to ochre Pyrosmalite-(Fe) crystals are set on the dark gray matrix. They form an irregular, slightly lustrous area along one side of the specimen, standing out against the fine-grained dark rock. Measuring approximately 4–5 cm, the specimen shows the crystals in their natural geological setting.

Geology & Origin
Nordmark lies in the historic Bergslagen mining region of central Sweden, known for its iron and manganese ores. The ores occur there in part as skarn deposits associated with marble horizons in volcanic and volcanosedimentary rock sequences. Pyrosmalite-(Fe) is documented from the Nordmark ore field. The area’s mineralization includes a varied association of silicates and ore minerals.

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