Donpeacorite, Turnerite; Balmat, St. Lawrence Co., NY, USA; Scab; unique piece
Donpeacorite and Turnerite from Balmat, St. Lawrence Co., NY, USA – small cabinet specimen as unique piece
This cabinet specimen shows Donpeacorite and Turnerite from Balmat, St. Lawrence Co., New York, USA. The piece comes from a well known locality for complex zinc manganese mineralization and presents an interesting combination of two rare mineral species.
The Donpeacorite and Turnerite crystals are visible and form fine grained to compact crystalline aggregates with a partly slightly lustrous surface. The crystals occur in close intergrowth and show a differentiated structure within the matrix, creating a varied and mineralogically appealing appearance.
Geology & Origin
Donpeacorite is a rare zinc manganese silicate, while Turnerite belongs to the phosphate group. Both minerals form under specific conditions in complex metamorphosed deposits and are typical associates in polymetallic ore systems.
Balmat in St. Lawrence County, New York, is an important locality for zinc deposits with complex mineral paragenesis. The deposits are known for a wide variety of rare minerals, including Donpeacorite and Turnerite from metamorphically influenced ore bodies.
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
| shipment-weight, NOT netto weight (kg) | 0.100000 |
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