Dresserite xls; Francon Quarry, Montreal, Canada; Scab; unique piece
Dresserite crystals from Francon Quarry, Montreal, Canada – small cabinet specimen as unique piece
This cabinet specimen shows Dresserite crystals from the Francon Quarry, Montreal, Canada. The piece comes from one of the world’s most famous localities for rare carbonate minerals and displays a typical and aesthetically appealing habit of this species.
The Dresserite crystals are clearly visible and form spherical to radiating aggregates in light cream colored tones. These are set on a fine crystalline drusy matrix, creating a strong visual contrast. The combination of the sparkling matrix crystals and the more prominent Dresserite aggregates gives the specimen a particularly attractive and dynamic appearance.
Geology & Origin
Dresserite is a rare barium carbonate hydroxide belonging to the group of secondary carbonate minerals. It forms in alkaline carbonate rich rocks, especially in cavities and fractures of carbonatitic or limestone related formations.
The Francon Quarry in Montreal is one of the most important localities for rare mineral species worldwide. The complex geology of this deposit has produced an exceptional variety of rare minerals, including well developed Dresserite crystals.
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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