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Ettringite on Oyelite
This specimen features a 5.8-cm-long, doubly-terminated ettringite crystal perched on a rolling carpet of soft white matrix. The crystal is lemon-yellow color, translucent, completely formed and free of damage - although it has an odd etched or rough area near the bottom termination (that seems a natural growth asymmetry). It has an unusual shimmering surface sheen to it, as do most of these. It is very rare to find large ettringites on matrix, particularly with such good display, from past finds (mostly in the 1980s) .The matrix is a manganese-rich ore completely covered with a blanket of soft Oyelite (perhaps with Bultfonteinite) deposition on its front side. It is covered on the backside with sparkling micro-hausmannite crystals.
Unknown Owner
Product details
Species
SizeSmall Cabinet
Dimensions8.0 x 6.0 x 4.5 cm
Locality
Added on10/23/2024
Known provenance
Date08/2024
CollectorUnknown Owner
Acquisition priceNot disclosed
Comments
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