|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Bournonite|
|Locality:||(St. Endellion), Cornwall, England (Type Locality for Bournonite)|
|Description:||Classic specimen of cogwheel-habit iridescent metallic bournonite crystals on colorless quartz microcrystalline casts after calcite. The bournonite cogwheel form is due to cyclic twinning in a single plane. Ex. Henry D. Miller (1838-1919 or 1920) collection, bequeathed to the Wadsworth Atheneum in 1909; ex. Loomis-Chaffee School|
|Overall Size:||7x5x3.5 cm|
|Status:||Sold - Posted here for reference only|
|Buy similar:||Minerals from UK, Iceland, Greenland > Bournonite Crystals|
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