Beryl xls (red Beryl, Bixbite); Topaz Mountain, Utah, USA; Gerd Tremmel collection; Scab; unique piece
Red Beryl crystals from Topaz Mountain, Utah, USA, Gerd Tremmel collection – small cabinet specimen as unique piece
Beryl crystals from Topaz Mountain, Utah, USA, from the Gerd Tremmel collection. The specimen consists of a light gray to slightly beige volcanic host rock with a locally developed cavity containing a small, pinkish Beryl crystal. The crystal is embedded in a fine-grained, pale matrix and stands out clearly in color from the surrounding rock. Although modest in size, the crystal is clearly identifiable as Beryl. Overall, this is a representative cabinet-size specimen from this classic locality, with its primary appeal rooted in the geological context and the well-documented paragenesis.
Geology & Origin
Beryl is a beryllium aluminum silicate that typically forms in granitic pegmatites as well as in rhyolitic volcanic rocks affected by pneumatolytic and hydrothermal processes. Topaz Mountain in Utah, USA, is a world-famous locality for Beryl, Topaz, and other high-temperature minerals formed in cavities within rhyolitic lava flows. Crystal growth occurred from gas- and fluorine-rich fluids during the cooling stages of the volcanic system. Specimens from this classic locality are highly regarded for their geological significance and mineralogical diversity.
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) | embeddet 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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