Yanomamite specimens for sale
1 for sale · $200 USD
1 in the gallery
Yanomamite is an arsenate mineral with the chemical formula InAsO4·2H2O. It forms in vitreous to transparent crystals that can be colorless, white, or yellow, often appearing as prismatic or tabular specimens. Its tetragonal habit and relatively low hardness give it a delicate, yet crisp appearance on micro-mount collections, where tiny, well-formed crystals can be appreciated under magnification.
- Formula
- InAsO₄·2H₂O
- Rarity
- Rare
- Stability
- Stable
- Collector interest
- Niche Interest
- Classification notes
- Arsenate; variscite group (Strunz 8.CD)
Key characteristics
- Crystal system
- tetragonal
- Mohs hardness
- 2.5–3
- Specific gravity
- 3.75–3.85
- Luster
- vitreous
- Transparency
- transparent, translucent
- Color
- colorless, white, yellow
- Streak
- white
- Cleavage
- none
- Fracture
- uneven
- Crystal habit
- prismatic, tabular, granular, massive
- Micro-mount only
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About Yanomamite
Notable specimens come from locales where arsenate-bearing minerals crystallize in stable, low-temperature environments, and are highly sought after by collectors working with micro-mounts. Yanomamite is rare, contributing to its appeal among niche interests and specialists who value crystal quality, translucency, and mineralogical context within the variscite group. Collectors value its clean habit, vitreous luster, and the intriguing combination of indium and arsenate chemistry that distinguishes it from more common arsenates, making it a compelling subject for careful study and display.