$350Median
69Sold (12 mo)
$50Last sale
Helvite with Microcline
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A fine example for the species with very sharp crystals of helvite measuring to 0.5 cm in size across a crystallized white microcline matrix. Muscovite is present as well. The helvite crystals are brightly fluorescent red under longwave ultraviolet light.
Product details
SpeciesMicrocline, Helvite
SizeCabinet
Dimensions11.5 x 6.0 x 4.5 cm
Added on07/18/2025
LocalityBrazil, Minas Gerais, São Geraldo do Baixio
Current owner
Unknown Owner
Acquired 07/2025·Paid $280.00
Previous owners
| Date | Collector | Acquisition price |
|---|---|---|
| — | Weinrich Minerals | Not disclosed |
Learn more
Mineral guide
Learn about Microcline
classic potassium feldspar with blocky crystals, dramatic twinning (Carlsbad, Manebach) and the vivid amazonite variety, a top Pikes Peak gem.Regional guide
Microcline from São Geraldo do Baixio
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