Trögerite
A variety of Minerals
What is Trögerite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Trögerite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Trögerite Localities Map
See where Trögerite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Lemon-yellow, to deep yellow
- Hardness (Mohs)
- 2 - 3
- Density
- 4.8 g/cm³
- Streak
- White to pale yellow
Chemical Properties
- Chemical Formula
- (H3O)(UO2)(AsO4) · 3H2O There is a considerable confusion in the literature in distinguishing amongst two independent species, (meta)hydroniumuranospinite (structure based upon autunite topology), and trögerite (structure based upon different topology, as indicated by U:As ratio equal 3:2, c.f. original description by Weissbach 1873). Locock et al. (2004) introduced a misleading assignment of trögerite to the autunite group, with the composition (H3O)2(UO2)2(AsO4)26. Chernorukov et al. (2011) synthesized compound of the composition (UO2)3(AsO4)2(H2O)12, which they equalized with trögerite. Structural investigations of Locock and Burns (2002) on synthetic (UO2)3(PO4)2(H2O)4, which is based on uranophane topology, suggests, that trögerite may be based on similar topology, having a framework structure with uranium located both on sheets as well as in interlayer, similarly as e.g. phosphuranylite (Demartin et al. 1991). The chemical composition of trögerite given in original description by Weissbach (1873) suggests that these two substances are not same mineral. Recently electron microanalysis of the type material of trögerite documented neither presence of trögerite on it nor the presence of (H3O)2(UO2)2(AsO4)26. All analyzed crystals belong to nováčekite (Plášil et al. in prep.)
- Elements
- As, H, O, U
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Trögerite FAQs
How do I identify Trögerite?
Trögerite can be identified by its hardness of 2 - 3 on the Mohs scale, Lemon-yellow color. Look for these key characteristics when examining specimens.
What color is Trögerite?
Trögerite typically appears in Lemon-yellow, to deep yellow. Color can vary depending on impurities and formation conditions.
How hard is Trögerite?
Trögerite has a hardness of 2 - 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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