Height including lamp holder approximately 26 cm
Iänmukaista kulumaa. Toimivuutta ei testattu. Merkityksetön pintavaurio.
The laventinite was discovered by Waldemar Christopher Brøgger and Hans Reusch in 1875. Brøgger initially thought it was moscovite, but later realised it was a new mineral. A more detailed description was published by Brøgger in 1890.