Zinnwaldite specimens for sale

8 for sale · $350–$3,000 USD

7 in the gallery

Zinnwaldite is a mica mineral that forms in layered, sheet-like crystals with a dull to pearly luster. It typically occurs as lamellar aggregates and can be brown to olive in color, often presenting a sensible translucence along the crystal faces. Distinguished by its association with granitic and pegmatitic environments, zinnwaldite commonly shows a flaky habit that yields to careful trimming and aesthetic display pieces. Notable localities include historic European mining districts in Germany and the Czech Republic, where specimens have long attracted attention for their size, condition, and the subtle variation in color and sheen.

Formula
KLiFe2+Al(AlSi3)O10(OH,F)2
Rarity
Rare
Stability
Moderately Stable
Collector interest
Moderate Interest
Classification notes
Phyllosilicate, mica group; Strunz 9.EC.20

Key characteristics

Crystal system
monoclinic
Mohs hardness
2.5–3
Specific gravity
2.9–3.2
Luster
vitreous, pearly
Transparency
transparent, translucent
Color
brown, gray, green, yellow
Streak
white
Cleavage
perfect
Fracture
uneven
Crystal habit
tabular, prismatic, granular, massive
  • Classic / historic

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Where Zinnwaldite is found

Top localities

  1. Khoroshiv Raion (Volodarsk-Volynskii)1 specimen
  2. Baveno1 specimen

About Zinnwaldite

Collectors value zinnwaldite for its historical significance and its appeal as a classic mica. Although not as flashy as some other mica species, well-preserved crystals and crisp lamellae from prominent mines can provide striking displays. The mineral’s earthy tones and gentle luster make it a versatile addition to a broad mineral collection, especially for those focused on European pegmatite-derived specimens and the broadermica group.