$475Median
3520Sold (12 mo)
$175Last sale
Cassiterite with Quartz and "Zinnwaldite"
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For me, Cassiterite crystals always add a pang of excitement to a specimen, but perhaps I need to get out more often! This most delicious miniature certainly does this for me, with four separate, well developed twinned glossy-black Cassiterite crystals embedded between chocolate-bronze books of hexagonal Zinnwaldite Mica crystals and small, 1 to 5 mm milky Quartz crystals. The Cassiterite twins' range between 0.7 and 1 cm across and form perfectly defined butterfly twins with lustrous central re-entrant faces. Zinnwaldite is now no longer classified as a species but is a convenient term for mica within the Siderophyllite and Polylithionite series. These elegant Mica books attain 1.8 cm and provide an aesthetic foil to the metallic Cassiterite, a tin oxide. A charming specimen from the famous tin deposit which spans the border between Germany (Saxony) and the Czech Republic (Bohemia). The locality therefore carries the joint names C'novec/Zinnwald near to Erzgebirge and Krusn' Hory.
Product details
SpeciesQuartz, Cassiterite, Zinnwaldite
SizeSmall Cabinet
Dimensions7.0 x 4.1 x 2.1 cm
Added on10/24/2024
Current owner
Unknown Owner
Acquired 07/2026·Paid $700.00
Previous owners
| Date | Collector | Acquisition price |
|---|---|---|
| — | Crystal Classics | Not disclosed |
Learn more
Mineral guide
Learn about Quartz
a versatile mineral with clear, milky, and colored varieties; crystal forms, formation clues, and tips for identifying amethyst and citrine.Regional guide
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